"The Tree of Science" is a novel by the famous Spanish writer Pio Baroch, brought to the reader in 1911. In this book, the author recreates the complex world of social and political changes in Spain at the end of the 19th century through the prism of the life and enlightenment of the main character - a young medical student. "The Tree of Science" is not only a reflection of the social realities of the era, but also a study of the hero's inner world, his struggle with uncertainty and the search for meaning. This book entices the reader not only with the mystery of the plot, but also with the depth of thoughts about a person in society and his path to self-discovery.