- The 13th edition of Guyton and Hall Textbook of Medical Physiology continues this bestselling title"s long tradition as the world"s foremost medical physiology textbook. Unlike other textbooks on this topic, this clear and comprehensive guide has a consistent, single-author voice and focuses on the content most relevant to clinical and pre-clinical students. The detailed but lucid text is complemented by didactic illustrations that summarize key concepts in physiology and pathophysiology.