O. Yeager's book is dedicated to that era in the history of mankind, which is known as the “Middle Ages”. This bright and eventful period is described by the author in a fascinating, imaginative and simple way. Particularly interesting are the characteristics of historical figures who appear in bright, lively and memorable sketches. The abundance of factual material, as well as the beautifully selected illustrative series, distinguishes this work from many educational and popular publications.