Perhaps this information will help someone who is wondering where to start with the Pimsleur German courses. I selected this Pimsleur "German Plus" course with the intent to recapture my old school German, from the very beginning of study. While this course seems excellent, it is not the course with which to start. Phoning Pimsleur, I learned that this "German Plus" course contains their lessons 91 through 100, which should follow their German Level III Comprehensive course. Each of the three Comprehensive Levels contains 30 lessons, all together numbered 1-30, 31-60, and 61-90. Additionally, note that the several less expensive Pimsleur offerings each contain lessons that are in the Level I Comprehensive course. If you start with one of the shorter courses, and then you wish to go further, you will have to obtain Level I, which will contain all the lessons that you already have studied. The gist of the story is: pay the bigger bucks to start with Level I Comprehensive, following up, if you wish, with Level II, Level III, and "German Plus". All this might be obvious to someone more clever than I; yet, I have not seen this information in print.