Maria Leber's Mutations of the Book is a fascinating essay that traces the history of the book from ancient parchment manuscripts to modern electronic reading devices. The author investigates the impact of technology on the book market and reader perception, revealing interesting facts and discoveries that reflect the living nature of book culture. "Book Mutations" will be of interest not only to lovers of literature, but also to a wide range of readers who are interested in the impact of technology on our perception of the world.