The book "About the Northern Chud language. Academic work" by Elias Lennroth is an outstanding work, which highlights the issues of linguistics and culture of the northern peoples. The author investigates the language and speech of Chud tribes, revealing the unique features of their language system, semantics and phonetics. He conducts a comprehensive analysis of the grammar and vocabulary of this language, delving into its internal structure. In addition, Elias Lennroth provides the reader with an opportunity to better understand the cultural environment and historical context that surrounded this language, which helps to perceive it in all its depth. This book not only opens access to the study and understanding of the language of the Nordic peoples, but also reflects the inestimable value of the cultural and linguistic diversity that is preserved in the peoples of Northern Europe.