Gore’s book was on the list:

The Frankfurt Book Fair has an indicator to help publishers gauge public interest in the new offerings presented at the annual exhibition — the unofficial “most stolen book” index.
Bild am Sonntag and Germany’s ZDF television have come up with lists of titles most stolen from 15 leading German publishers’ stands set up in the Frankfurt trade fair grounds.
“The most-stolen books are usually the most-sold later on,” Claudia Hanssen of the Goldmann Verlag publishing house told Bild am Sonntag newspaper, which published a list of the 10 most stolen German-language books this year.