Dr. Waxman has assembled global experts to provide comprehensive coverage of Barrett's Esophagus, including diagnosis, management, treatment, and beyond. Articles are devoted to photodynamic therapy, minimally invasive surgery, advanced imaging, endoscopic mucosal resection, cryotherapy, and radiofrequency ablation. The clinical information in these articles will give readers a true picture of the advances in this disease state as well as what the clinical picture will look like in the near future.

The clinical implications of obesity have pervaded several specialties since treatments include medical and surgical intervention. In this issue, Dr. Thompson has created an issue that addresses topics of concern to endoscopists: important concerns in the endoscopic unit, presurgical evaluation, postoperative care, sedation, and endoscopic management of common complications. Further, special articles are included on endoscopic revisions to failed gastric bypass as well as reimbursement and regulatory issues.