Free E-Books and Print Sales :
“Digital technologies now enable books and other digital resources to be openly available to those with access to the Internet. This study examined the financial viability of a religious publisher that put free digital versions of eight of its print books on the Internet. The cost to put these eight books online was $940. Over a 10-week period, these books were downloaded 102,256 times and sales of these books increased 26%. Online sales increased at a much higher rate. Comparisons with historical book sales and sales of comparable titles indicate that that this increase may have been connected to the free books being available. There was a modest correlation between book downloads and print sales.”
URL : http://hdl.handle.net/2027/spo.3336451.0014.109