The book "Diplomatic Correspondence of Bertrand de Salignac de La Motte Fénelon, Volume One. French Ambassador to England from 1568 to 1575" contains documentary evidence of the famous diplomat of the 16th century. This work allows us to better understand the complex interstate relations of that time, as well as the personality of the author himself, who became famous for his high skill in resolving conflicts in the diplomatic field and in-depth knowledge of the political realities of that time. Every letter, every statement of the author in this book is a kind of mirror of historical events and spiritual relations of the end of the 16th century.