All Contra Costa County library branches offer programs for children, teens, adults and families. All branches are closed July 4, for the Independence Day holiday. For library hours and updated information, call the local branch or 800-984-4636 or visit www.ccclib.org.

  • At the Martinez Library, Story Time programs are free.

    Mother Goose Time: 10:30-11:30 a.m. Tuesdays through Aug. 26. There will be stories and songs, followed by a simple craft time. Best for ages 6 months-3 years old.

    ARF Dog Training Special Event: 6:30-7:30 p.m. July 28. Kids and middle school students, and all ages can learn the newest and best methods for training the family dog. ARF will demonstrate how to use clicker training and shaping, food puzzles and leash manners.

    Wild Americas: 2:30-3:30 p.m. Aug. 18. Kids are invited to meet a lynx, speckled owl, kinkajoo and others in a safe program by Wildlife Associates. Register to reserve a spot.

    Saturday Needle Art with Marilyn: 1-3:30 p.m. July 12, 26. Free. Teens and adults can drop in to work on current projects or restart a needle art hobby. Hands-on knit and crochet instructions from Marilyn.

    Knit & Crochet Six-Week Summer Class: 6-7:30 p.m. Tuesdays, July 15-Aug. 19. Teens and adults can learn knitting or crochet in the workshop run by experts, and sponsored by the Helping Hands Foundations of the National Needle Arts Association. It is geared toward youth 18 and under. Adults are welcome, but supplies may be limited. Register by 10 a.m. July 15.

    Button Making: 3-4:30 p.m. Aug. 20. Teens are invited to make buttons and create their own graphics or use some provided to decorate clothes, backpack or room. All materials provided.

    Bobcat! From Aug. 4-23, a bobcat exhibit provided by the Lindsay Wildlife Museum is on display during open hours at the library.

    Free Computer Help: noon-2 p.m. Wednesdays in July. Teens, adults and seniors can make an appointment or stop by to get one-on-one help with browsing the Internet, and how to use e-readers, smart phones/tablets and basic computer problems.

    The library is at 740 Court St., Martinez. Phone: 925-646-9900. Hours: noon-8 p.m. Mondays; 10 a.m.-8 p.m. Tuesdays; noon-5 p.m. Wednesdays and Fridays; and 10 a.m.-5 p.m. Saturdays. It is closed Sundays and Thursdays.

  • At the Pleasant Hill Library, Story Time programs are free.

    Story Time: 11:15-11:45 a.m. Wednesdays, Thursdays, Fridays and Saturdays features songs, movement and simple stories. Good for ages 0-5, but all are welcome.

    Afternoon Story Time: 1:15-1:45 p.m. Fridays. There will be songs, movement and simple stories to introduce children ages 0-5 to literacy.

    Puppet Show: Tale of the Dragon's Tail: 6:30-7:10 p.m. July 29. Children to age 11 are invited to Puppet Art Theater Company's fantasy show featuring a dragon, king, wizard and clever princess.

    Cosmos and Microcosmos: 6:30-8 p.m. Aug. 26. Kids can take a look at the vastness of outer space, and then a close-up look at tiny worlds through a microscope in a program presented by the Chabot Space and Science Center.

    Lego Creators Club: 2-3 p.m. Saturdays. Now with robots! Kids ages 5-11 can let their imaginations run wild and make many creations. Advanced builders can build and program their own robots with Lego Mindstorm EV3 kits.

    Imaginary Worlds (Make a 3D Animated Movie!): 3-4 p.m. Thursdays through Aug. 21. Students in grade 4 and older can make their own 3D animated movie at this weekly workshop presented by Tamara Helfer.

    Eco-Sewing: 3-5 p.m. July 23, 30. Teens can learn sewing machine skills and create upcycled fabric creations. The event is led by a recycling educator and artist. Crafts made will be used toward TAG's annual Art, Jazz and Wine Festival donation drive, and will benefit the library.

    World Tea Party: 2-3:30 p.m. July 12. Teens are invited for tea, treats and traditions from around the globe. Presented by the Teen Advisory Group.

    Pleasant Hill Teen Advisory Group (TAG): 3:30-5 p.m. Aug. 13. Teens ages 13-18 can meet other teens and the young adult librarian every second Wednesday of the month in Room A to create fun programs and suggest new resources. Participants can receive volunteer hours.

    Teen Chess and Board Games: 3-5 p.m. Fridays. Students 12-17 can get instruction and participate in friendly matches and tournaments. Participants can bring their own boards or games.

    Pleasant Hill Library Book Discussion: 6:30 p.m. July 15, in Room A. The discussion is on "A Tale of Two Cities," by Charles Dickens.

    Afternoon Book Discussion: 1-2:30 p.m. Aug. 1. Adults can read with others at the library in the upstairs reference area. This month's selection and discussion is on "People of the Book," by Geraldine Brooks.

    One-On-One Computer Tutor: 4-5 p.m. and 5-6 p.m. Tuesdays; 11 a.m. and noon Wednesdays. Adults can reserve an appointment for a one-hour, one-on-one computer training session to learn the basics and set up an email account, print and save on the library computer, use Microsoft Word and search the Internet. Select tutors may also offer assistance on digital gadgets like laptops, smart phones, e-readers and cameras. For help on a specific device, call the library when you make a reservation. Only one active reservation at a time is allowed per patron, and reservations missed by 15 minutes may be given away.

    Volunteer Orientation: 3-4 p.m. July 5. Teens and adults can learn to be a library volunteer during a tour the branch with a staff member.

    English Conversation Practice for Adults: 1:30-2:30 p.m. Wednesdays. Adults can practice speaking and listening to English in a casual group run by the library staff.

    Las Juntas Artists Association: In partnership with the library, each month the group exhibits the works of different artists during regular library hours.

    The library is at 1750 Oak Park Blvd., Pleasant Hill. Phone: 925-646-6434. Hours: 11 a.m.-6 p.m. Wednesdays and Thursdays; 1-8 p.m. Tuesdays; and 10 a.m.-5 p.m. Fridays and Saturdays.