In the newly-refurbished central library, in Town Square, musical youngsters will be able to enjoy a special singing and rhyming event between 11-11.45am.
Meanwhile, slithering snake sock puppets, mobiles and Chinese fans will be the big draw at Benetfeld Road's Binfield library.
Activities will run from 10.30am-3pm, including word searches, colouring, mazes and games, as well as a bounce and rhyme session for pre-school children at 11am followed by storytime for ages four to seven at 2.30pm.
For more information email email@example.com or call 01344 306663.
For the adults, Ascot Heath Library, in Fernbank Road, will be hosting a coffee morning on the day.
For details email firstname.lastname@example.org or call 01344 884030.
Cllr Iain McCracken, executive member for culture, corporate services and public protection, said: "National Libraries Day is a UK-wide event to celebrate the important role libraries play in our communities.
"I'm delighted that our Bracknell Forest Libraries are involved and I hope the our residents make the most of the activities on offer on the day and throughout the year."
For more information about all these events go to www.bracknell-forest.gov.uk/libraries