The book "The Mentor: Two Early German Artists, Dürer and Holbein, Volume 1, Issue 48, Series No. 48" by Frank Jewett Mather is a living testimony of the work of two outstanding artists of the Renaissance - Albrecht Dürer and Hans Holbein. The author introduces the reader to the life and work of these artists, revealing their contributions to the world of fine arts. The book describes in detail the history of painting and graphics of the Renaissance, and also reveals the influence of Dürer's and Holbein's works on later artists. This is a fascinating journey into the world of art, which reveals to the reader portraits and landscapes illuminated by the skill and talent of two unparalleled masters.