Wednesday's Publishers Weekly contained this:
After falling 6.8% in March, bookstore sales dropped 6.0% in April, according to estimates released by the Census Bureau this morning. The decline lowered bookstore sales in April to $909 million. Bookstore sales have fallen every month this year, and were down 4.3%, to $5.10 billion, in the January-through-April period. Sales for the entire retail segment were up 3.1% in April and 3.8% in the first four months of 2007.