The book "Dictionary of our mistakes in the use of the French language" by the famous author Raoul Renfret is a real treasure for everyone who is interested in French linguistics. In his work, the author analyzes in detail the typical mistakes that people make in speaking and writing in French. This book will be a useful reference for anyone who wants to improve their knowledge of the French language, correct their mistakes and improve their language skills. Raoul Renfret guides the reader through the complex points of French grammar and the structure of the language, emphasizes typical mistakes that are easily made in everyday communication. This book is an indispensable guide for anyone interested in language intricacies and linguistics in general.