By an author- illustrator team who have done related books (Rocks and Their Stories Doubleday, 1951, p. 294) a splendidly organized and satisfactorily explanatory study of rocks, ores and minerals. At the start, the difference between these three classifications sets the stage for descriptions of their particular manifestations. There are twenty-eight in all from aluminum to zinc, all of them familiar and of importance in everyday life, all described with reference to their discovery, make up, history, refining processes, practical uses. And an important part of the book- a section explaining elements and compounds- comes roughly a quarter of the way through, after good orientation has already been accomplished with specific examples.