“Assimil L’Américain Sans Interdits (Guide)” is a short pocket-style book from the Assimil language-learning collection that focuses on American slang and informal expressions rather than standard textbook English.
It is designed to help learners understand how Americans really speak in everyday life, including colloquial phrases, idioms, and popular slang, which are often not covered in traditional language courses. The guide presents vocabulary and expressions in a practical way so you can better follow casual conversations, movies, and real-life situations in the United States.