Marks’ Essentials of Medical Biochemistry: A Clinical Approach is targeted to first-year medical students taking a short, one-semester biochemistry course. Some of its users also come from the graduate, pharmacy, and nurse practitioner market. The purpose of the book is to teach the most essential biochemistry concepts with an emphasis on linking biochemistry and medicine through patient vignettes. It is based on the established biochemistry text, Marks’ Basic Medical Biochemistry: A Clinical Approach.