This is the 23rd edition of an essential textbook for the practice of obstetrics. It covers a wide breadth of topics in exquisite detail, yet remains easily accessible to obstetricians at all levels of training. Williams Obstetrics has always been considered an essential textbook for residents and physicians in obstetrics and gynecology, and the newest edition does nothing to change that....The figures and layout make this edition easier to read and comprehend than previous ones, and the color figures and images are first rate. For decades, ob-gyn practitioners and residents have hailed the book for its thoroughness, scientific orientation, and practical applicability at the bedside. Williams Obstetrics is reinforced throughout by a timely emphasis on evidence-based medicine, supported by state-of-the-art ultrasound images and original illustrations. The book's comprehensive coverage begins with an incisive look at maternal anatomy and physiology, and fetal growth and development. The text then progresses to the antepartum period, labor and delivery, the fetus and newborn, the peurperium period, obstetric complications, and medical and surgical complications.