In many of her books, Jeanne Bendick makes science and mathematics intelligible to the average interested child. In choosing to define the theories and discoveries of Archimedes, she is now writing for an audience whose proficiency in math and science has led to an interest in the history of these subjects -- namely -- an audience who might seek out a less simplified, more intense approach than the one Miss Bendick traditionally offers. This is the only problem that arises in a book which sketches in the biography of Archimedes and goes on to describe his various achievements. These include discoveries in arithmetic, astronomy and geometry and the development of the lever and pulley principles. Archimedes is credited with creating the first planetarium, finding some way of arriving at the roots of numbers, inventing ways of working with large numbers and experimenting with . The book is well organized and well written, though not as as earlier titles by this author.