What types of books does BookSmiles accept? We accept new and gently used children's books. • Ages infant through 6th grade • Fiction and Non-fiction (please, no encyclopedia, reference books, or religiously themed books) • Donate children's books that you would be proud to give to a child. • Please, no old books that smell musty, have been scribbled in, or that have yellowed over time and no torn covers/pages.