“According to the Book Industry Study Group, used book sales topped $2.2 billion in 2004, an 11 percent increase over 2003. Much of that growth can be credited to the Internet. While used sales at traditional stores rose a modest 4.6 percent, they jumped 33 percent online, to just over $600 million. More than 111 million used books were purchased last year, representing about one out of every 12 overall book purchases. By the end of the decade, the percentage is expected to rise to one out of 11, a troubling trend when sales for new works are essentially flat; authors and publishers receive no royalties from used buys.”