The 54th seminar was held on March 20th, 2016. The number of participants was over 3,800, reflecting great interest in the medical community. The program consisted of more than 20 sessions with 80 lectures and case discussions. The didactic lecture sessions covered basic and advanced knowledge on upper and lower GI endoscopy, endoscopic retrograde cholangiopancreatography (ERCP), and endoscopic ultrasonography. In addition, topics of discussion included endoscopic quality improvement programs, sedation for endoscopy, disinfection of endoscopes, and infection control in endoscopy suites. A dedicated session for GI endoscopy nursing was also held. The live demonstration sessions shared important tips for upper and lower GI endoscopy. Finally, the colonoscopy hands-on course and disinfection course provided valuable learning experience. The contents of the seminar can be accessed through the KSGE website (http://www.gie.or.kr/).

The editorial committee of the KSGE carefully selected and invited 12 lectures from the 54th seminar to be published in this issue. The topics include gastric cancer, management of foreign bodies in the GI tract, colorectal polyps, inflammatory bowel disease, ERCP, and a national endoscopic quality improvement program. We hope and believe that this issue of Clinical Endoscopy will provide the readership with the highlights of the core contents of the seminar.