The holiday sales season for print books ended with a strong final week, through December 27, with sales as recorded by Nielsen Bookscan up 4.5 million units (or 20 percent) over the same sales week last year. Per the trend already written about widely, for all of 2015 print book sales grew by 17.6 million units in all, or a modest 2.8 percent, moving over 652 million units in all. (In 2014, unit sales were up about 15 million units compared to the prior year.) Our sales trend analysis from a week or so ago still holds, except that in the end, […]