ISBN Systems in Germany

Germany's ISBN system is administered by the MVB (Marketing- und Verlagsservice des Buchhandels), operating through the ISBN-Agentur at german-isbn.de. German-language ISBNs use the 978-3 prefix group, shared with Austria and German-speaking Switzerland. New publishers register with MVB and receive a publisher prefix, then can assign individual ISBNs from their block. The first block of 10 ISBNs costs approximately €132 including registration fees.

The VLB (Verzeichnis Lieferbarer Bücher) is Germany's books-in-print database and the central catalogue used by all German bookshops, wholesalers, and libraries. Registration in VLB is essential for distribution in the German book trade. When you register your ISBN with MVB, you can also submit your metadata to VLB. For self-published authors selling primarily through Amazon.de, VLB registration is optional but recommended if you want your book discoverable in the broader German book market.

Deutsche Nationalbibliothek (DNB) in Frankfurt and Leipzig serves as Germany's legal deposit library. German publishers — including self-published authors — are required to deposit two copies of every publication with the DNB. The deposit can be submitted online for digital publications. Your ISBN is the primary identifier in the DNB catalogue, and books without ISBNs face more complex cataloguing processes. The DNB catalogue is searchable at portal.dnb.de.

The German book trade operates under the Buchpreisbindung (fixed book price law), which requires all print books to be sold at the same price across all retailers. While this law generally does not apply to self-published POD books, ISBN registration in VLB can trigger price-binding expectations from German retailers. If you register in VLB, be prepared to maintain a consistent retail price across channels, or clearly note your POD exemption status.

For English-language books sold in Germany, the 978-0 and 978-1 ISBN prefixes (English-language group) are perfectly valid on Amazon.de and in German retail. You do not need a German ISBN to sell in Germany. However, if your book is translated into German, the German edition should receive a 978-3 prefix ISBN registered through MVB. Use the lookup tool above to verify that your book's metadata appears correctly across international databases regardless of which country's ISBN you use.