Pathology of the Achilles tendon is one of the most commonly written about topics in foot and ankle surgery, yet there is no clear consensus on the management of these injuries; in addition, pathologic aspects of the Achilles tendon are not well understood. This up-to-date resource addresses all aspects of Achilles tendon pathology, management, rehabilitation and complications, including novel aspects of Achilles tendon treatment as well as more detail on operative techniques for Achilles tendon surgery. Sensibly divided into four thematic sections, part I presents general considerations such as anatomy and pathology, the physical exam and imaging modalities, and patient-reported outcomes. The following sections describe current management strategies for acute and chronic injuries and complications, respectively. Both nonoperative and operative techniques are highlighted, from minimally invasive techniques to tendinoscopy and open debridement and biological augmentation. Generous intraoperative photos and figures enhance the presentation, and operative algorithms are clearly elucidated. Bringing together the latest in the diagnosis and management of these common injuries, The Achilles Tendon will be a valuable reference for orthopedic foot and ankle surgeons, sports medicine surgeons, podiatrists and fellows and residents in these areas.