Publishing economics being what they are, a book represents a substantial gamble for the publisher. Let's take a look at a budget for a book. This is the upfront money. It can take a great many forms, as co-publishing occurs more frequently than one might realize. Authors who are well-funded may approach a publisher with a manuscript.
Arrangements can come in diverse forms.
This clearly calls for heavy-duty finances on the author's part and is obviously not for every author. This arrangement has the advantage of the author being able to promote the book without having to deal with the work of getting the book produced. When the loan is retired, the author is paid a royalty on 30 percent of the net profits against their loan. An author who strongly believes in the forth of his or her book and works assiduously at selling can possibly get a decent return on the investment. In the academic world, there are publishers who make arrangements to co-publish academic books.