A review of the guide Vouloir changer: Une approche axée sur le client traitant de l'usage d'alcool et de médicaments chez les aines. After describing the main ideas, the author presents the strengths and weaknesses of this guide. The quality of clinical information and the expertise of the authors and collaborators in the area of drug addiction are noted. A weakness in theoretical and scientific precision is indicated, however. It is also mentioned that some concepts could have been affected in the translation. While underlining the usefulness of this document, the author of the review made suggestions that could have perhaps improved the presentation of the material.