Change leads to anxiety, and there has been a lot of change in publishing in recent years. There is one trend, though, that is striking more fears in publishers' minds than any other. And that is the fear of data.
While sales data has been with us for a long time and is used extensively, there are now new kinds of data that are becoming available. Social media campaigns can reveal who clicked on a link. Email campaigns can be tracked for opens, forwards and reactions to calls to action. But the availability of reading data is probably causing more angst than any other because it strikes at the heart of publishing- everything from acquisition to editorial to marketing to author care.