"Henrik Gabriel Portan: a biography" is a unique work created by the scientist Gunnar Suolahti, which reveals the life and activities of the outstanding Finnish scientist and teacher Henrik Gabriel Portan. The book describes in detail Portan's research and teaching achievements, his contribution to the development of Finnish humanitarian knowledge and culture. The author has carefully studied Portan's life path and scientific legacy, presenting the reader with a healing world of his thoughts, ideas and discoveries. Through the prism of this book, the reader will be able to get to know a unique figure and feel the influence that Portan's teachings had on the formation of Finnish culture. "Henrik Gabriel Portan: a biography" is not only a biographical investigation, but also a deep emphasis on the importance and high value of scientific work and self-sacrifice in the advancement of knowledge.