The book "Letters from my Thought Library" by the famous Finnish writer Zacharias Topelius is a collection of letters reflecting the author's thoughts, feelings and observations. In these essays, the author shares his own thoughts about nature, people, history, and much more. Thanks to the easy and masterful writing style, readers can immerse themselves in the unique world of Topelius' poetic thought and discover new aspects of life. "Letters from my mental library" will be an excellent companion for those who are interested in philosophy, literature and the depths of the human soul.