The German e-book market is a strange thing. While I personally know many large publishers that are earning between ten and 20 percent of their sales volume with e-books, the German book trade organization Börsenverein together with market research company GfK still validates the share of the e-book at around 5.3 percent. with a growth rate of 5.3 percent after the first three quarters of 2015. In the year before, the growth rate at this time was at 8.7 percent, in 2013 even at 62.6 percent.
The source of these numbers is not the book trade itself but a consumer panel from GfK of 25.000 people that’s said to be representative. Theoretically that should mean even Self-published titles are included in this calculation as the panel does not differentiate the channels where books or e-books are bought. On the other hand, if we look at the share of self-published titles at Amazon and the share of Amazon in the German book market, the overall e-book numbers should definitely be higher.