You can find this course through several official channels at retailers like Amazon and Assimil.com : Go to product viewer dialog for this item. Perfectionnement anglais
If you can’t find/buy the official PDF: Assimil Perfectionnement Anglais Pdf
However, if you are looking for about the method — such as a detailed analysis, comparison, study guide, or a sample self-study plan based on the Perfectionnement Anglais (Using English) approach — I can draft that for you. You can find this course through several official
Discover "Assimil Perfectionnement Anglais" — a structured, fluent-focused course designed for advanced learners who want to refine spoken and written English. This edition builds on Assimil’s proven dual‑input method, combining natural dialogues with clear grammatical notes and progressive exercises. Each lesson pairs a realistic conversation with targeted explanations, vocabulary expansion, and practical drills that strengthen idiomatic usage, advanced tenses, and nuanced register. and nuanced register.