Amazon is not the publisher, Betascript Publishing is. Looking at their site, it seems that what they do is gather articles and bind them together (with or without permission, I don't know). Here is the text from their About page:

Annually, millions of works are written worldwide in the research industry. Enterprises and scientists would be especially interested in these ideas; nevertheless, up to today, most of this work is shelved as a result of high costs. Betascript Publishing specializes in the publication of such works and uses commitment and the latest technology in order to make the invaluable work of such researchers available worldwide, quickly and efficiently.