This issue of Foot and Ankle Clinics, guest edited by Dr. Phinit Phisitkul, will cover essential topics related to Updates in the Management of Acute and Chronic Lesions of the Achilles Tendon. Under the guidance of long-time series Consulting Editor Dr. Mark Myerson, Dr. Phistikul and his contributing authors will explore topics of interest for practitioners in the field. Articles include, but are not limited to: Anatomical and functional considerations in Achilles tendon lesions; Minimally invasive treatments for acute Achilles tendon ruptures; Open Reconstructive strategies for Chronic Achilles Tendon Ruptures; Maximizing the return to sports after Achilles tendon rupture in athletes; Nonsurgical treatment modalities for Insertional Achilles tendinopathy; Surgical strategies for the treatment of Insertional Achilles Tendinopathy; Minimally invasive and endoscopic treatment of Haglund syndrome; Management of complications related to Achilles tendon surgery; Biologics in the treatment of Achilles tendon pathologies; and Endoscopic reconstruction for Chronic Achilles Tendon Ruptures, among others.