_Man-made Transuranium Elements_, Glenn T. Seaborg, Prentice Hall, Inc., Englewood Cliffs, New Jersey, 1963, 120 pp., $6.95 (hardback); $2.95 (paperback). The discovery, properties, and applications of elements heavier than uranium are considered in this book, which is designed as an introduction to the subject. Glenn Seaborg was co-discoverer of nine of the twelve transuranium elements. _The Nature of Matter: Physical Theory from Thales to Fermi_, Ginestra Amaldi, translated by Peter Astbury, Chicago University Press, Chicago, Illinois, 1966, 332 pp., $5.95. A nontechnical history of atomic energy. _Niels Bohr: His Life and Work as Seen by His Friends and Colleagues_, S. Rozental (Editor), John Wiley and Sons, Inc., New York, 1967, 355 pp., $5.95. An articulate and scholarly biography by the friends and co-workers of this outstanding atomic pioneer. _Niels Bohr: The Man, His Science, and the World They Changed_, Ruth Moore, Alfred A. Knopf, Inc., New York, 1966, 436 pp., $7.95. An interesting biography of one of the pioneers in the study of the internal structure of the atom. _Otto Hahn: My Life_, Otto Hahn, translated by Ernest Kaiser and Eithne Wilkins, Herder and Herder, Inc., New York, 1970, 240 pp., $6.50. Autobiography of the man who discovered that the atom could be split. _Otto Hahn: A Scientific Autobiography_, Otto Hahn, Willy Ley, editor and translator, Charles Scribner’s Sons, New York, 1966, 320 pp., $9.95. Otto Hahn, winner of the 1944 Nobel Prize for his work in atomic fission, reviews the pioneer days in which a new science was created, and the role he played in its development. _Physics and Beyond: Encounters and Conversations_, Werner Heisenberg, translated by Arthur J. Pomerans, Harper and Row, Publishers, New York, 1970, 247 pp., $7.95. Werner Heisenberg, a Nobel Prize physicist, presents his autobiography in the form of conversations with such men as Max Planck, Albert Einstein, Niels Bohr, Ernest Rutherford, Otto Hahn, and Enrico Fermi. _Physics for Poets_, Robert H. March, McGraw-Hill Book Company, New. York, 1970, 302 pp., $7.50. A physics textbook for nonscience students. The book covers certain developments of classical mechanics, relativity, and atomic and quantum physics. With this book the author won the 1971 American Institute of Physics—U. S. Steel Foundation Science Writing Award in Physics and Astronomy. _Sourcebook on Atomic Energy_ (third edition), Samuel Glasstone, Van Nostrand Reinhold Company, New York, 1967, 883 pp., $15.00. An excellent standard reference work, written for both scientists and the general public.