Servetus and Calvin: A Study of an Important Period in the Early History of the Reformation, written by Robert Willis, is a unique study of the events that took place during the Reformation. The author reveals important aspects of the interaction between prominent representatives of this time - Servetus and Calvin. The book examines in detail conflict situations, ideological contradictions and the influence of these two figures on the further development of the Reformation. Thanks to careful research and analysis of documents, the author exposes not only public speeches, but also personal disputes between the main characters of the religious reformation. This book will become an integral part of understanding the early history of the Reformation and the interaction of great minds.