Dr. Paul Pimsleur was a world-renowned expert in applied linguistics who dedicated his life to language education and assessment. Dr. Pimsleur established The Pimsleur Method based on two important principles: the Principle of Anticipation and a scientific memory training theory he dubbed Graduated Interval Recall, which he developed after years of experience and research. This method has been used in the Pimsleur Programs on a variety of levels and languages.