This is an ideal textbook for an introductory level medical physics/biomedical engineering course for juniors and seniors. When I used this textbook to teach an introductory level medical physics class, I found it to be rich in biological and medical materials, and hardly referred my students to other textbooks. It includes most of the derivations that students need to know and plenty of problems for them. The authors have done a great service for the students by explaining required physics concepts in the textbook.