Geld und Geldersatz in deutchen Konzentrationslagern und Gettos 1933 bis 1945, by Hans-Ludwig Grabowski.
A new book covering paper money and payment cupons used in German Consentration Camps and Gettos in the period 1933 to 1945.
In this new book the author is describing not only the notes and cupons, but there are a lot of letters, pictures, receipts and other documents, all i coloures. You will also find a chapter covering fakes and counterfeits, a detailed description of "Operation Bernhard" and others.
An impressive work on a total of 456 pages in hardcover. A problem for some can be that the book is written in German, however, the extencive number of pictures will compensate for this and will make it easy to use and to understand anyhow.
A must if this is in your field of collection.