This came up today when I was going through the submissions.
We’ve had two works on exactly the same subject in as many days. Both are quite well written, with very similar content and even a similar style.
But I’ve only passed one on for further consideration. Why?
Because one has been written by two sisters, while the other has been co-written by someone with a PhD in the subject.
From whom would you buy?
This is why, when you submit – and especially with non-fiction – you should include an author biography that makes you shine, succinctly detailing your achievements and suitability to write the idea. Even if the idea is amazing and doesn’t come up that often, you may very well be asked to help promote the work in whatever way possible. We look at the author as well as the work when considering.
There are no original ideas, only original executions. With this in mind, you must find the confidence to sell yourself as much as your work.