People often ask me why the need for a collaborator and my answer is very simple—to make the work they are creating better and more saleable. (Here, by the way, I am mainly talking about non-fiction.)
Collaborators—especially those with experience—help the author, especially at the proposal stage, focus their idea and on exactly how they want to organize the message they want their book to deliver.
Collaborators can also bring out aspects of the book that the author hadn’t even considered including.
Collaborators, because they are paid a flat fee or have a percentage of the project, are dedicated to the work of producing both a proposal and a manuscript in an efficient and timely manner. This is often something the author (especially first time authors) working alone is unable to do.
Finally, the author, if he or she wants to and is interested in writing subsequent books, can learn a great deal from the collaboration and then go on to write their own books down the line.
I would love to know your thoughts on the benefits of using a collaborator, so bring them on.

March 14, 2016
Jane