Families and students in grades K-12 are invited to the 29th Annual Children's Books Party, April 27, from 8:30 to 10:30 a.m. at the Spreckels Organ Pavilion in Balboa Park. This fun and popular event is free of charge and open to the public. There will be entertainment, refreshments and each child will receive two free brand new books to help them build their own library. Over one million books have been given away over the years. Read more.