"Pogonologia; or A Philosophical-Historical Essay Treatise on Beards" is an interesting book written by the French historian and ethnographer Jacques-Antoine Dulor. In this work, the author explores the history and philosophy of beards, revealing their various aspects in different cultures and eras. With the help of this treatise, the reader will deepen his knowledge about beards as a symbol of strength, wisdom or social status in different parts of the world. The book contains a rich archive of facts, opinions and analyses, making it a fascinating source of knowledge for a wide range of readers."