“While book sales stayed constant at $15B from 2002-12, if inflation was taken into account they decreased by 23%. About 1B of this loss was made up for by the rise of ebook sales. ”
“While book sales stayed constant at $15B from 2002-12, if inflation was taken into account they decreased by 23%. About 1B of this loss was made up for by the rise of ebook sales. ”
