Print Continues Its Death Spiral

JK Rowling's announcement that she is self-publishing the Harry Potter e-books pretty much drowned everything else out yesterday, but there was some other news that should be highlighted.

The American Association of Publishers (AAP) released figures for April 2011. Adult Hardback was in first position again this month, with $111.4m in sales (a sharp drop of over 20% from $142.9m in April 2010).

Adult trade paperback was in second position again this month with $95.9m (down from $128.2m or a...