Source: Digital Book World, Oct 2012
e-book sales accounted for about 25% of total trade sales, up to $768 million for the first half, an increase of 52% over the same period last year, according to Publishers Lunch.
From 2007 through 2011, e-book sales doubled or more every year. Digital growth at major trade publishing companies like Random House and Hachette — bellwethers for the industry — has slowed, too. Digital publishing revenues at both companies now represent 27% of total revenues, up from about 21% the year before.