Fortress Third Reich - H. Kaufmann

The Atlantic Wall is perhaps the most famous of Germany's World War II-era fortification lines in Europe, but Hitler built many others, from elabourate coastal defences along the English Channel to the nearly impervious lines protecting the German homeland-the massive West Wall and the hurriedly built East Wall.
Fortress Third Reich
is the first and only comprehensive treatment of Germany's World War II fortifications and the important Nazi defensive systems, such as the Reich's highly feared air defence. The authors present an in-depth and detailed account of all German fortifications and defensive systems of World War II, supplemented by scores of remarkable technical drawings by Robert M. Jurga.