The book "Zacharias Topelius: life and activity" was written by Sarlin, A.Y. and tells about the life and work of the famous Finnish writer and historian of the 19th century - Zacharias Topelius. The author reveals to the reader not only biographical facts, but also details of his literary heritage and significance for Finnish culture. By describing the period of Topelius' life, the book helps to understand his contribution to the literature and history of Finland, as well as the relevance of his works in the modern world. Having delved into this book, readers will have the opportunity to better understand the extraordinary figure and talent of Zacharias Topelius.