En français dans le texte. 1, Barbarismes et compagnie by Michel Voirol is a concise linguistic guide focusing on common errors in French usage, particularly barbarisms—words or expressions that violate standard grammatical or lexical norms. Published in paperback by Victoires in 1995, this 18-page volume serves as a practical reference for students, educators, and language enthusiasts seeking to refine their command of correct French. The book identifies and explains frequent mistakes, offering clear corrections and contextual examples to reinforce proper usage. Its pedagogical approach makes it suitable for both self-study and classroom instruction, emphasizing clarity and precision in written and spoken French.