The book "Medieval Mystic: A Short Sketch of the Life and Work of Blessed Jan Roysbrook, Canon Regular from Grenandal, 1293-1381." authorship of Vincent Scully, reveals to the reader the fascinating world of spirituality and wisdom of the outstanding figure of the Middle Ages - Jan Roysbrook. The book examines in detail the life path, spiritual visions and written works of this outstanding mystic, who permeated the world with the light of faith and understanding and made a significant contribution to the development of Christian spirituality. The author offers a unique opportunity to walk under the paths of spiritual freedom and integrity, which testify to the greatness and inner strength of the impulses of the human soul. This book will become an integral part of the library of everyone who is interested in spiritual development and the search for higher truth.