Gr 3-8 The varied activities and games in this selection should provide imaginative stimulation for many occasions. A supplemental Teacher's Guide gives directions for encouraging creative and divergent thinking. Enough new, or newly synthesized, material is included to make this eclectic mix inviting and satisfying to young readers. Activities and games are ordered around special days, cooking challenges, brain teasers and puzzles, indoor and outdoor fun, traveling time, and such esoterica as ``presents for pets.'' Four full-color game boards come with the book, printed on the verso of a large separate puzzle poster. All directions are clearly expressed in the second person. Highly illustrative and fully captioned photographs (identifying young subjects by name and place) and colorful drawings facilitate independent understanding, although parents will need to help with occasional supplies and supervision. While Steven Caney's Kids' America (Workman, 1978) is a much larger treasure store, A World of Things To Do is appealing in design and broad enough in ideas to make it one of the better game/amusement/activity books currently available. Public libraries will find it meets a need, and school librarians will want to tell their teachers about it. Katharine Bruner, Brown Middle School, Harrison, Tenn.