SANTA CRUZ — Santa Cruz Public Libraries will host a Book Party for ages 3-8 and an Author Forum for educators of prekindergarten to third-grade children from 10 a.m. to 1 p.m. in the Downtown Library Upstairs Meeting Room, 224 Church St. The book party, taking place from 10 a.m. to noon, will include readings and signings by local authors Eve Bunting, Diane Landy, Eric Hoffman and Kathy Ellen, activity tables, Pacific Cookie Company cookies and goodie bags. The Author Forum, held from 12:15-1 p.m., will include a panel by the authors for teachers, librarians and others to ask questions for the classroom. Friends of Santa Cruz Public Libraries will receive a 15 percent donation of all book sales.