Celebrate ideas, books, libraries and literary culture at the fourth annual San Antonio Book Festival on Saturday, April 2, 2016, from 10 a.m.-5 p.m. at the Central Library, Southwest School of Art and Charlene McCombs Empire Theatre. The all-day festival is free and open to the public. The lineup of more than 80 national and regional authors will be announced on Feb. 9. Festival activities include author talks, panel discussions, book sales and signings, interactive areas and educational opportunities for children and teens, food trucks, the Festival Marketplace and recipe demonstrations by cookbook authors. For more information about the Festival, including the Literary Feast at the St. Anthony and Literary Death Match at the Empire and other additional weekend events, visit saplf.org/festival.