Invited to the I-II modular training course at the Department of Therapy of the Azerbaijan State Advanced Training Institute for Doctors named after A. Aliyev, Director of Advanced Endoscopy of the Koch University Hospital, Professor Dr. Fatih Aslan, on October 29, 2021, delivered an extensive lecture on the diagnosis, differential diagnosis and invasive endoscopic treatment of achalasia (endoscopic mucosal resection (EMR), endoscopic submucous dissection (ESD), submucous tunnel endoscopic resection (STER), oral endoscopic Myotomy (POEM), laparoscopic endoscopic combined surgery (LECS), innovations in the field of invasive endoscopy, they were received with great appreciation by doctors.