http://ipdahome.org/newsstand/?cat=296
Although
the growth of ebook sales has slowed in 1H 2013, there were still enough gains
to largely mitigate the decline in print sales. As a result, profits improved
at all but one of the six major trade publishers that reported results for the
period. At the Houghton Mifflin Harcourt trade group, print sales
increased faster than digital, due mainly to HMH’s purchase of John Wiley’s
cookbook line. Print book sales also rose at Penguin in the period, up
13.4%, while digital sales increased 28.6%. Penguin’s overall results were
helped by favorable currency changes.