This issue brings the anesthesiologist up to date on current essential topics in ambulatory anesthesia.  Topics covered include obstructive sleep apnea, pediatric ambulatory anesthesia, supraglottic airway devices, issues in office-based ambulatory anesthesia, complex sedation, the role of regional anesthesia in the ambulatory environment, regional catheters, postoperative pain management for the ambulatory patient, and updates on PONV and PDNV.  Authors also explore the questions of how much testing should be done, how to make yourself ASC desirable to patients and surgeons, and more.