This is an easy book to browse through, because the written sections can stand alone and are filled with enough interesting details for a child to ponder for quite a while. It will particularly appeal to kids who love to spout amazing facts to boggle their elders. And boggled they will be, by details about lava domes on Venus, the formation of auroras, and the location of ice fields on Mars. The information is recent, precise, and plentiful. . . . This fine book would enrich the talented and interested student's study of a unit on space. It will also appeal to reluctant readers.