The Bookseller reports that
The e-reader market doubled over Christmas, according to statistics given out by the Publishers Association at its annual digital seminar.
The figures, compiled by Book Marketing Limited, showed that 7% of British adults received a dedicated e-reader over the festive period, bringing the total percentage of adults with e-book readers up to 13%, or 6.5m adults.
The Kindle was revealed as the most popular device with 24% of those who had downloaded an e-book saying they had used the Amazon e-book reader. The iPhone was revealed as playing an important role in the e-reading market: 19% of downloaders use one to read digital content, with 13% saying that it is the device they use most often.