This is a wonderful read for any physicists interested in the early developments of atomic and nuclear physics. The scientists profiled are those that made significant contributions and advances in the use of radiation and radioactivity in medicine: Roentgen, Curie, Planck, Rutherford, Bragg, Duane, Bohr, Joliot, Compton and Fermi. The profiles are short and easy to read, and provide a nice overview of the contributions of each person to the field.