Simon Kidgits Club at Columbia Center mall in Kennewick is holding a free Book Blast event.
Starting at 10 a.m. Saturday, families can read together and celebrate books.
There will be story time with Miss Tri-Cities, Kennewick's chief of police and a surprise visit from a famous book character.
Parents and children also will do a make-your-own book craft and see a balloon drop and confetti bomb.
Families also are encouraged to bring at least one gently-used or new book to donate to the Mid-Columbia Reading Foundation.
For more information, go to simon.com/kidgits.