To add to the many recent surveys of atoms and their function (see Atoms Today and Tomorrow by Margaret Hyde, The Tenth Wonder by Carleton Pearl, etc.) this is another efficient study which, with Asimov's name, should have its drawing power. In well organized form the chapters discuss atomic content in nature, the arrangement of: atoms and basic sub-atomic particles, elements and their isotopes, instability, atomic span of life, the bombardment of nuclei and the changes it brings about, and lastly, atomic energy and its dangers and its hopeful possibilities for mankind. Plenty to chew on here, all very well explained by a man whose business is science.