This letter strongly recommends Igor Mokryk for his skills as a pediatric cardiac surgeon and leader. It describes how he developed a pediatric heart center in Ukraine that grew from basic to complex congenital heart surgery. Through his expertise, dedication, and meticulous attention to detail, the center thrived and patient care improved tremendously. His leadership also increased resources and led to a new dedicated cardiac hospital building. The letter concludes that Dr. Mokryk is a rare individual with high character, extensive experience, and excellent surgical and leadership abilities.