What Problem Does Your Book solve?
Here’s the Bulgarian cover, which my friend actually edited!
When it comes to writing, the question is: what is the problem this book solves? What does it have/ express that no other book does?
If you don’t have this answer yet, keep cooking. It will come. Do research online and search for comparable titles (you have to do this for your book proposal anyways).
For example, when I began working on the Everyday ayurveda Cookbook it was because all my clients were scared of their ayurveda cookbooks. Too much text, too many ingredients, too many complicated diagnostics.
I set out to make a book that was friendly, and easy on the eye. It worked!