Book excerpt: To better reflect its new and expanded content, the name of the 4th edition of Operative Anatomy has been changed to Essential Operative Techniques and Anatomy. In this latest edition, the text’s focus on clinically relevant surgical anatomy will still remain, but it is now organized by anatomical regions rather than by procedures. Then to further ensure its relevance as a valuable reference tool, the number of chapters has been expanded to 134 and the color art program has also been increased significantly.