This event is in the "Adults" group This event is in the "Older Adults" group Cafecito con Alzheimer’s San Diego: Manteniendo saludable su cerebro Wednesday, March 25, 2026 at 10:00am - 11:30am OT - Seminar Room - Otay Mesa-Nestor at Otay Mesa-Nestor Library Program Type: Featured, En Español, Wellness Age Group: Adults, Older Adults Manteniendo saludable su cerebro¿Por qué es difícil hablar de este tema? Aprende a prepararte y hacer un plan. View Details This event is in the "Adults" group This event is in the "Older Adults" group Mar 25 2026 Wed Cafecito con Alzheimer’s San Diego: Manteniendo saludable su cerebro 10:00am–11:30am Otay Mesa-Nestor Library Remaining seats Remaining waitlist seats Library Branch: Otay Mesa-Nestor Library Room: OT - Seminar Room - Otay Mesa-Nestor Age Group: Adults, Older Adults Program Type: Featured, En Español, Wellness Event Details: Manteniendo saludable su cerebro¿Por qué es difícil hablar de este tema? Aprende a prepararte y hacer un plan.
This event is in the "Adults" group This event is in the "Older Adults" group Library for All Featuring Trinity Theatre Company Wednesday, March 25, 2026 at 11:00am - 12:00pm RB - Bill & Marcia Collins Community Room - Rancho Bernardo at Rancho Bernardo Library Program Type: Art Age Group: Adults, Older Adults Library for All is a monthly arts and crafts program for adults with special needs. People of all abilities are welcome to participate in this event. View Details This event is in the "Adults" group This event is in the "Older Adults" group Mar 25 2026 Wed Library for All Featuring Trinity Theatre Company 11:00am–12:00pm Rancho Bernardo Library Remaining seats Remaining waitlist seats Library Branch: Rancho Bernardo Library Room: RB - Bill & Marcia Collins Community Room - Rancho Bernardo Age Group: Adults, Older Adults Program Type: Art Event Details: Library for All is a monthly arts and crafts program for adults with special needs. People of all abilities are welcome to participate in this event.
This event is in the "Emerging Adults" group This event is in the "Adults" group This event is in the "Older Adults" group Tierrasanta Mahjong Group Wednesday, March 25, 2026 at 11:30am - 2:30pm TS - Community Room - Tierrasanta at Tierrasanta Library Age Group: Emerging Adults, Adults, Older Adults A gathering of intermediate & advanced players who want to enjoy a few rounds of mahjong together!Materials are providedMahjong Group meets every Wednesday from 11:30am-2:30pm. View Details This event is in the "Emerging Adults" group This event is in the "Adults" group This event is in the "Older Adults" group Mar 25 2026 Wed Tierrasanta Mahjong Group 11:30am–2:30pm Tierrasanta Library Remaining seats Remaining waitlist seats Library Branch: Tierrasanta Library Room: TS - Community Room - Tierrasanta Age Group: Emerging Adults, Adults, Older Adults Event Details: A gathering of intermediate & advanced players who want to enjoy a few rounds of mahjong together!Materials are providedMahjong Group meets every Wednesday from 11:30am-2:30pm.
This event is in the "All Ages" group This event is in the "Emerging Adults" group This event is in the "Adults" group This event is in the "Older Adults" group Digital Navigation Wednesday, March 25, 2026 at 11:30am - 3:15pm City Heights/Weingart Library Program Type: Accessibility, Career & College, Citizenship and Immigration, Community Engagement Age Group: All Ages, Emerging Adults, Adults, Older Adults Get help on the computers and with your digital devices from a Digital Navigator every Wednesday! View Details This event is in the "All Ages" group This event is in the "Emerging Adults" group This event is in the "Adults" group This event is in the "Older Adults" group Mar 25 2026 Wed Digital Navigation 11:30am–3:15pm City Heights/Weingart Library Remaining seats Remaining waitlist seats Library Branch: City Heights/Weingart Library Age Group: All Ages, Emerging Adults, Adults, Older Adults Program Type: Accessibility, Career & College, Citizenship and Immigration, Community Engagement Event Details: Get help on the computers and with your digital devices from a Digital Navigator every Wednesday!
This event is in the "Emerging Adults" group This event is in the "Adults" group This event is in the "Older Adults" group PH Friends of the Library Meeting Wednesday, March 25, 2026 at 12:00pm - 1:00pm PH - Teen Area - Paradise Hills at Paradise Hills Library Program Type: Featured, Community Engagement Age Group: Emerging Adults, Adults, Older Adults Interested in becoming a Friend to the Paradise Hills Branch Library? Come join us in our monthly meeting. View Details This event is in the "Emerging Adults" group This event is in the "Adults" group This event is in the "Older Adults" group Mar 25 2026 Wed PH Friends of the Library Meeting 12:00pm–1:00pm Paradise Hills Library Remaining seats Remaining waitlist seats Library Branch: Paradise Hills Library Room: PH - Teen Area - Paradise Hills Age Group: Emerging Adults, Adults, Older Adults Program Type: Featured, Community Engagement Event Details: Interested in becoming a Friend to the Paradise Hills Branch Library? Come join us in our monthly meeting.
This event is in the "Elementary School Age" group This event is in the "Middle School Age" group This event is in the "Teens" group This event is in the "Emerging Adults" group This event is in the "Adults" group This event is in the "Older Adults" group 3D Lab Open Hours Wednesday, March 25, 2026 at 12:00pm - 3:00pm LJ - IDEA Lab - La Jolla/Riford at La Jolla/Riford Library Program Type: IDEA Labs/Makerspaces, Science/STEAM Age Group: Elementary School Age, Middle School Age, Teens, Emerging Adults, Adults, Older Adults We are excited to offer 3D Printing in person! Stop by the La Jolla/Riford Library's IDEA Lab during open lab hours with your .STL file and staff will be happy to assist you. View Details This event is in the "Elementary School Age" group This event is in the "Middle School Age" group This event is in the "Teens" group This event is in the "Emerging Adults" group This event is in the "Adults" group This event is in the "Older Adults" group Mar 25 2026 Wed 3D Lab Open Hours 12:00pm–3:00pm La Jolla/Riford Library Remaining seats Remaining waitlist seats Library Branch: La Jolla/Riford Library Room: LJ - IDEA Lab - La Jolla/Riford Age Group: Elementary School Age, Middle School Age, Teens, Emerging Adults, Adults, Older Adults Program Type: IDEA Labs/Makerspaces, Science/STEAM Event Details: We are excited to offer 3D Printing in person! Stop by the La Jolla/Riford Library's IDEA Lab during open lab hours with your .STL file and staff will be happy to assist you.
This event is in the "Emerging Adults" group This event is in the "Adults" group This event is in the "Older Adults" group Gentle Yoga for Adults - Part of the Living Well for Adults program series Wednesday, March 25, 2026 at 12:30pm - 1:30pm RP - Community Room - Rancho Peñasquitos at Rancho Peñasquitos Library Program Type: Community Engagement, Wellness Age Group: Emerging Adults, Adults, Older Adults Bring a mat and towel to enjoy a calming and gentle yoga experience.No registration necessary.Presented by Healthy Adventures. View Details This event is in the "Emerging Adults" group This event is in the "Adults" group This event is in the "Older Adults" group Mar 25 2026 Wed Gentle Yoga for Adults - Part of the Living Well for Adults program series 12:30pm–1:30pm Rancho Peñasquitos Library Remaining seats Remaining waitlist seats Library Branch: Rancho Peñasquitos Library Room: RP - Community Room - Rancho Peñasquitos Age Group: Emerging Adults, Adults, Older Adults Program Type: Community Engagement, Wellness Event Details: Bring a mat and towel to enjoy a calming and gentle yoga experience.No registration necessary.Presented by Healthy Adventures.
This event is in the "Adults" group This event is in the "Older Adults" group Body Dynamics, by San Diego Continuing Education Wednesday, March 25, 2026 at 12:30pm - 2:30pm MV - Community Room - Mission Valley at Mission Valley Library Program Type: Wellness Age Group: Adults, Older Adults This class provides students with an understanding of the Breath-Mind-Body dynamic and its relationship to health and wellness during the aging process. Students learn breathing techniques for self-care, mental resilience, and physical relax View Details This event is in the "Adults" group This event is in the "Older Adults" group Mar 25 2026 Wed Body Dynamics, by San Diego Continuing Education 12:30pm–2:30pm Mission Valley Library Remaining seats Remaining waitlist seats Library Branch: Mission Valley Library Room: MV - Community Room - Mission Valley Age Group: Adults, Older Adults Program Type: Wellness Event Details: This class provides students with an understanding of the Breath-Mind-Body dynamic and its relationship to health and wellness during the aging process. Students learn breathing techniques for self-care, mental resilience, and physical relax
This event is in the "Adults" group This event is in the "Older Adults" group OASIS: The Wright Brothers and the Dawn of Aviation Wednesday, March 25, 2026 at 1:00pm - 2:00pm PO - Marla Haas Community Room - Point Loma/Hervey at Point Loma/Hervey Library Program Type: Community Engagement, Wellness Age Group: Adults, Older Adults On a cold winter day in 1903 two obscure brothers changed the world when Wilbur Wright took off in the first manned, heavier than air powered aircraft. View Details This event is in the "Adults" group This event is in the "Older Adults" group Mar 25 2026 Wed OASIS: The Wright Brothers and the Dawn of Aviation 1:00pm–2:00pm Point Loma/Hervey Library Remaining seats Remaining waitlist seats Library Branch: Point Loma/Hervey Library Room: PO - Marla Haas Community Room - Point Loma/Hervey Age Group: Adults, Older Adults Program Type: Community Engagement, Wellness Event Details: On a cold winter day in 1903 two obscure brothers changed the world when Wilbur Wright took off in the first manned, heavier than air powered aircraft.
This event is in the "Emerging Adults" group This event is in the "Adults" group This event is in the "Older Adults" group Crochet Club Wednesday, March 25, 2026 at 1:00pm - 3:00pm VA - Community Room - Carmel Valley at Carmel Valley Library Program Type: Art Age Group: Emerging Adults, Adults, Older Adults Bring your current project and crochet along with our library staff. Want to learn how to crochet? We'll supply the materials to teach you. Stuck on a project or have questions? We'll help you with it. Knitters are also welcome! View Details This event is in the "Emerging Adults" group This event is in the "Adults" group This event is in the "Older Adults" group Mar 25 2026 Wed Crochet Club 1:00pm–3:00pm Carmel Valley Library Remaining seats Remaining waitlist seats Library Branch: Carmel Valley Library Room: VA - Community Room - Carmel Valley Age Group: Emerging Adults, Adults, Older Adults Program Type: Art Event Details: Bring your current project and crochet along with our library staff. Want to learn how to crochet? We'll supply the materials to teach you. Stuck on a project or have questions? We'll help you with it. Knitters are also welcome!
This event is in the "Emerging Adults" group This event is in the "Adults" group This event is in the "Older Adults" group Mystery Book Club Wednesday, March 25, 2026 at 3:00pm - 4:30pm MH - Study Room 3 - Mission Hills/Hillcrest at Mission Hills-Hillcrest/Knox Library Program Type: Literature Age Group: Emerging Adults, Adults, Older Adults The Mission Hills Mystery Book Club attendees discuss a mystery novel on the 4th Wednesday of each month at 3:00 PM. Pick up this month's book at the Mission Hills-Hillcrest/Knox Branch Library. View Details This event is in the "Emerging Adults" group This event is in the "Adults" group This event is in the "Older Adults" group Mar 25 2026 Wed Mystery Book Club 3:00pm–4:30pm Mission Hills-Hillcrest/Knox Library Remaining seats Remaining waitlist seats Library Branch: Mission Hills-Hillcrest/Knox Library Room: MH - Study Room 3 - Mission Hills/Hillcrest Age Group: Emerging Adults, Adults, Older Adults Program Type: Literature Event Details: The Mission Hills Mystery Book Club attendees discuss a mystery novel on the 4th Wednesday of each month at 3:00 PM. Pick up this month's book at the Mission Hills-Hillcrest/Knox Branch Library.
This event is in the "Emerging Adults" group This event is in the "Adults" group This event is in the "Older Adults" group Adult Coloring Club Wednesday, March 25, 2026 at 3:30pm - 4:30pm TS - Community Room - Tierrasanta at Tierrasanta Library Program Type: Art Age Group: Emerging Adults, Adults, Older Adults The Tierrasanta Library Adult Coloring Club is a group that gathers to color for relaxation and creativity. We meet in-person every Wednesday afternoon, offering a space for social interaction and sharing artistic expressions. Cancelled View Details This event is in the "Emerging Adults" group This event is in the "Adults" group This event is in the "Older Adults" group Mar 25 2026 Wed Cancelled Adult Coloring Club 3:30pm–4:30pm Tierrasanta Library Remaining seats Remaining waitlist seats Library Branch: Tierrasanta Library Room: TS - Community Room - Tierrasanta Age Group: Emerging Adults, Adults, Older Adults Program Type: Art Event Details: The Tierrasanta Library Adult Coloring Club is a group that gathers to color for relaxation and creativity. We meet in-person every Wednesday afternoon, offering a space for social interaction and sharing artistic expressions.
This event is in the "All Ages" group This event is in the "Elementary School Age" group This event is in the "Middle School Age" group This event is in the "Teens" group This event is in the "Emerging Adults" group This event is in the "Adults" group This event is in the "Older Adults" group Bingo Night! Wednesday, March 25, 2026 at 4:00pm - 5:00pm OK - Main Area - Oak Park at Oak Park Library Age Group: All Ages, Elementary School Age, Middle School Age, Teens, Emerging Adults, Adults, Older Adults 🎉 Bingo Night! 🎉Looking for midweek fun? Join us for Bingo Night every Wednesday from 4:00–5:00 PM! View Details This event is in the "All Ages" group This event is in the "Elementary School Age" group This event is in the "Middle School Age" group This event is in the "Teens" group This event is in the "Emerging Adults" group This event is in the "Adults" group This event is in the "Older Adults" group Mar 25 2026 Wed Bingo Night! 4:00pm–5:00pm Oak Park Library Remaining seats Remaining waitlist seats Library Branch: Oak Park Library Room: OK - Main Area - Oak Park Age Group: All Ages, Elementary School Age, Middle School Age, Teens, Emerging Adults, Adults, Older Adults Event Details: 🎉 Bingo Night! 🎉Looking for midweek fun? Join us for Bingo Night every Wednesday from 4:00–5:00 PM!
This event is in the "Teens" group This event is in the "Emerging Adults" group This event is in the "Adults" group DIY @ the IDEA Lab Wednesday, March 25, 2026 at 4:00pm - 5:30pm SK - IDEA Lab - Skyline Hills at Skyline Hills Library Program Type: IDEA Labs/Makerspaces Age Group: Teens, Emerging Adults, Adults Register Now Registration Encouraged This event is in the "Teens" group This event is in the "Emerging Adults" group This event is in the "Adults" group Mar 25 2026 Wed DIY @ the IDEA Lab 4:00pm–5:30pm Skyline Hills Library Remaining seats Remaining waitlist seats Library Branch: Skyline Hills Library Room: SK - IDEA Lab - Skyline Hills Age Group: Teens, Emerging Adults, Adults Program Type: IDEA Labs/Makerspaces Registration Encouraged
This event is in the "Emerging Adults" group This event is in the "Adults" group This event is in the "Older Adults" group English Corner - English Conversation Wednesday, March 25, 2026 at 4:30pm - 5:30pm NU - Community Room - North University at North University Community Library Program Type: Citizenship and Immigration, Community Engagement, Cultural Appreciation Age Group: Emerging Adults, Adults, Older Adults Community members with a basic grasp of English language can have fun themed conversations and build relationships with one another. We will talk about ourselves, our cultures, and more. View Details This event is in the "Emerging Adults" group This event is in the "Adults" group This event is in the "Older Adults" group Mar 25 2026 Wed English Corner - English Conversation 4:30pm–5:30pm North University Community Library Remaining seats Remaining waitlist seats Library Branch: North University Community Library Room: NU - Community Room - North University Age Group: Emerging Adults, Adults, Older Adults Program Type: Citizenship and Immigration, Community Engagement, Cultural Appreciation Event Details: Community members with a basic grasp of English language can have fun themed conversations and build relationships with one another. We will talk about ourselves, our cultures, and more.
This event is in the "Teens" group This event is in the "Emerging Adults" group This event is in the "Adults" group This event is in the "Older Adults" group Craftworks: Gemstone Soap Wednesday, March 25, 2026 at 6:30pm - 8:00pm Ocean Beach Library Program Type: Featured, Art, Community Engagement, Wellness Age Group: Teens, Emerging Adults, Adults, Older Adults Join the library for a craft at the People's Co-Op in Ocean Beach! ToshWerks will help us to create soap that looks like gemstones!All supplies provided, but are limited, so registration is strongly encouraged. For ages 13 and up. View Details This event is in the "Teens" group This event is in the "Emerging Adults" group This event is in the "Adults" group This event is in the "Older Adults" group Mar 25 2026 Wed Craftworks: Gemstone Soap 6:30pm–8:00pm Ocean Beach Library Remaining seats Remaining waitlist seats Library Branch: Ocean Beach Library Age Group: Teens, Emerging Adults, Adults, Older Adults Program Type: Featured, Art, Community Engagement, Wellness Event Details: Join the library for a craft at the People's Co-Op in Ocean Beach! ToshWerks will help us to create soap that looks like gemstones!All supplies provided, but are limited, so registration is strongly encouraged. For ages 13 and up.
This event is in the "Emerging Adults" group This event is in the "Adults" group This event is in the "Older Adults" group FREE Tax Preparation with AARP Thursday, March 26, 2026 at 9:30am - 5:00pm CH - Community Room - College-Rolando at College-Rolando Library Program Type: Featured, Accessibility Age Group: Emerging Adults, Adults, Older Adults Stop by for FREE tax preparation assistance generously provided by AARP and the IRS to help most low-middle income taxpayers. View Details This event is in the "Emerging Adults" group This event is in the "Adults" group This event is in the "Older Adults" group Mar 26 2026 Thu FREE Tax Preparation with AARP 9:30am–5:00pm College-Rolando Library Remaining seats Remaining waitlist seats Library Branch: College-Rolando Library Room: CH - Community Room - College-Rolando Age Group: Emerging Adults, Adults, Older Adults Program Type: Featured, Accessibility Event Details: Stop by for FREE tax preparation assistance generously provided by AARP and the IRS to help most low-middle income taxpayers.
This event is in the "Emerging Adults" group This event is in the "Adults" group This event is in the "Older Adults" group Community GYN Cancer Support Group Thursday, March 26, 2026 at 10:00am - 12:00pm NU - Community Room - North University at North University Community Library Program Type: Wellness Age Group: Emerging Adults, Adults, Older Adults View Details This event is in the "Emerging Adults" group This event is in the "Adults" group This event is in the "Older Adults" group Mar 26 2026 Thu Community GYN Cancer Support Group 10:00am–12:00pm North University Community Library Remaining seats Remaining waitlist seats Library Branch: North University Community Library Room: NU - Community Room - North University Age Group: Emerging Adults, Adults, Older Adults Program Type: Wellness
This event is in the "Adults" group This event is in the "Older Adults" group Mahjong for Seniors- 50 Plus Thursday, March 26, 2026 at 10:00am - 12:00pm SR - Community Room - Scripps Miramar Ranch at Scripps Miramar Ranch Library Program Type: Community Engagement Age Group: Adults, Older Adults Mahjong for SeniorsJoin Us for Senior Mahjong at the Library! View Details This event is in the "Adults" group This event is in the "Older Adults" group Mar 26 2026 Thu Mahjong for Seniors- 50 Plus 10:00am–12:00pm Scripps Miramar Ranch Library Remaining seats Remaining waitlist seats Library Branch: Scripps Miramar Ranch Library Room: SR - Community Room - Scripps Miramar Ranch Age Group: Adults, Older Adults Program Type: Community Engagement Event Details: Mahjong for SeniorsJoin Us for Senior Mahjong at the Library!
This event is in the "Emerging Adults" group This event is in the "Adults" group This event is in the "Older Adults" group Book Club Thursday, March 26, 2026 at 10:30am - 11:30am CM - Community Room - Carmel Mountain Ranch at Carmel Mountain Ranch Library Program Type: Literature Age Group: Emerging Adults, Adults, Older Adults Join like-minded bibliophiles to discuss fiction titles. A limited number of each month’s selection will be available at the Circulation Desk. This program is appropriate for adults 18 and up. View Details This event is in the "Emerging Adults" group This event is in the "Adults" group This event is in the "Older Adults" group Mar 26 2026 Thu Book Club 10:30am–11:30am Carmel Mountain Ranch Library Remaining seats Remaining waitlist seats Library Branch: Carmel Mountain Ranch Library Room: CM - Community Room - Carmel Mountain Ranch Age Group: Emerging Adults, Adults, Older Adults Program Type: Literature Event Details: Join like-minded bibliophiles to discuss fiction titles. A limited number of each month’s selection will be available at the Circulation Desk. This program is appropriate for adults 18 and up.
This event is in the "Adults" group This event is in the "Older Adults" group Tai Chi Moving for Better Balance Thursday, March 26, 2026 at 12:00pm - 1:00pm MV - Community Room - Mission Valley at Mission Valley Library Program Type: Wellness Age Group: Adults, Older Adults Tai Chi Moving for Better Balance (Tai Ji Quan) has been shown to improve balance and mobility and reduce the risk of falls. People of all ability levels are welcome. This class can be conducted from a seated or standing position.  View Details This event is in the "Adults" group This event is in the "Older Adults" group Mar 26 2026 Thu Tai Chi Moving for Better Balance 12:00pm–1:00pm Mission Valley Library Remaining seats Remaining waitlist seats Library Branch: Mission Valley Library Room: MV - Community Room - Mission Valley Age Group: Adults, Older Adults Program Type: Wellness Event Details: Tai Chi Moving for Better Balance (Tai Ji Quan) has been shown to improve balance and mobility and reduce the risk of falls. People of all ability levels are welcome. This class can be conducted from a seated or standing position. 
This event is in the "Emerging Adults" group This event is in the "Adults" group This event is in the "Older Adults" group Book Discussion - Thursday, March 26, 2026 at 12:30pm - 2:00pm SR - Seminar Room - Scripps Miramar Ranch at Scripps Miramar Ranch Library Program Type: Book Discussion, Community Engagement Age Group: Emerging Adults, Adults, Older Adults View Details This event is in the "Emerging Adults" group This event is in the "Adults" group This event is in the "Older Adults" group Mar 26 2026 Thu Book Discussion - 12:30pm–2:00pm Scripps Miramar Ranch Library Remaining seats Remaining waitlist seats Library Branch: Scripps Miramar Ranch Library Room: SR - Seminar Room - Scripps Miramar Ranch Age Group: Emerging Adults, Adults, Older Adults Program Type: Book Discussion, Community Engagement
This event is in the "Emerging Adults" group This event is in the "Adults" group This event is in the "Older Adults" group Pen to Paper Writing Group Thursday, March 26, 2026 at 1:00pm - 2:00pm LJ - Seminar Room - La Jolla/Riford at La Jolla/Riford Library Program Type: Literature Age Group: Emerging Adults, Adults, Older Adults Whether you’re new to creative writing or have been at it for years, all are welcome to join this drop-in class. You’ll learn techniques to polish your writing craft in a welcoming and supportive environment. View Details This event is in the "Emerging Adults" group This event is in the "Adults" group This event is in the "Older Adults" group Mar 26 2026 Thu Pen to Paper Writing Group 1:00pm–2:00pm La Jolla/Riford Library Remaining seats Remaining waitlist seats Library Branch: La Jolla/Riford Library Room: LJ - Seminar Room - La Jolla/Riford Age Group: Emerging Adults, Adults, Older Adults Program Type: Literature Event Details: Whether you’re new to creative writing or have been at it for years, all are welcome to join this drop-in class. You’ll learn techniques to polish your writing craft in a welcoming and supportive environment.
This event is in the "Adults" group This event is in the "Older Adults" group Communication Skills Thursday, March 26, 2026 at 1:00pm - 2:30pm PB - Community Room/Taylor Gallery - Pacific Beach/Taylor at Pacific Beach/Taylor Library Program Type: Wellness Age Group: Adults, Older Adults Develop new skills for connecting and communicating more effectively with a person experiencing memory loss, and strategies on how to respond when interactions are challenging. View Details This event is in the "Adults" group This event is in the "Older Adults" group Mar 26 2026 Thu Communication Skills 1:00pm–2:30pm Pacific Beach/Taylor Library Remaining seats Remaining waitlist seats Library Branch: Pacific Beach/Taylor Library Room: PB - Community Room/Taylor Gallery - Pacific Beach/Taylor Age Group: Adults, Older Adults Program Type: Wellness Event Details: Develop new skills for connecting and communicating more effectively with a person experiencing memory loss, and strategies on how to respond when interactions are challenging.
