This updated and expanded fourth edition of a popular reference book for teachers and librarians to use in planning interesting extension projects, holiday events to promote diversity, and cross-cultural understanding indexes 725 new books and features over 1,000 indexed projects. Indexes build on the previous three volumes. The book is indexed by subject and author and features indexes to educational games, crafts, activities, and more. It will be particularly useful to educators for use in the social studies curriculum, but also valuable to daycare providers and parents. Booklist and Appraisals and others favorably reviewed previous editions. Complete bibliographic information is given for all books indexed. Grades K-8.