The book *Biomedical Optics, Principles and Imaging* by Lihong V. Wang and Hsin-I Wu is a comprehensive and useful textbook designed for a one-semester course in biomedical optics. The authors, experienced professors in the field, expanded their class notes to create a book that covers a wide range of topics, including Rayleigh and Mie theories, Monte Carlo modeling of photon transport, radiative transfer, and diffusion theory. The book is intended for upper-class undergraduates, graduate students, and professionals in the field who need a reference or for independent study. It provides a clear and uniform notation, making it easier for readers to understand the fundamental physics and mathematical formulations of light scattering and diffusion. The second half of the book focuses on imaging and spectroscopic techniques, such as fluorescence spectroscopy, ballistic imaging, and various types of tomography. The authors integrate mathematics smoothly into the text, provide well-designed figures, and include MATLAB scripts and homework problems to enhance the learning experience. The book also includes an appendix with basic optical properties, acronyms, and a detailed index. Overall, *Biomedical Optics* is highly recommended for those with the necessary mathematical and computational background, offering a valuable resource for both teaching and research in biomedical optics.The book *Biomedical Optics, Principles and Imaging* by Lihong V. Wang and Hsin-I Wu is a comprehensive and useful textbook designed for a one-semester course in biomedical optics. The authors, experienced professors in the field, expanded their class notes to create a book that covers a wide range of topics, including Rayleigh and Mie theories, Monte Carlo modeling of photon transport, radiative transfer, and diffusion theory. The book is intended for upper-class undergraduates, graduate students, and professionals in the field who need a reference or for independent study. It provides a clear and uniform notation, making it easier for readers to understand the fundamental physics and mathematical formulations of light scattering and diffusion. The second half of the book focuses on imaging and spectroscopic techniques, such as fluorescence spectroscopy, ballistic imaging, and various types of tomography. The authors integrate mathematics smoothly into the text, provide well-designed figures, and include MATLAB scripts and homework problems to enhance the learning experience. The book also includes an appendix with basic optical properties, acronyms, and a detailed index. Overall, *Biomedical Optics* is highly recommended for those with the necessary mathematical and computational background, offering a valuable resource for both teaching and research in biomedical optics.