If you're going to Germany, a good map is quite valuable. I've used Michelin maps for years, and I haven't gotten too lost yet. Here are some of the most popular Michelin maps of Germany--some of the whole country, some more detailed maps of sections or regions of Germany. If you're going to do much driving off the main roads, the detailed maps are essential.
274 page spiral-bound map book including the whole country of Germany as well as Benelux, Switzerland, Austria, and the Czech Republic.
Detailed map of the Northwest of Germany, Michelin map number 415.
Midwest detail map including Hannover, Dusseldorf, Frankfurt, and Saarbrucken.
Detailed map for the East Central part of Germany.
Detailed map for the Southwest of Germany, Michelin map number 419.
Michelin Germany map number 420, road map of Southeast Germany, covering the main and secondary road networks across the region.
A map of the main roads in Germany and surrounding countries.