Knowing how to write an effective book proposal, or at least be able to write a good first draft, is an important skill for all new authors to hone. Author Carolyn Howard-Johnson believes that in order to have an impactful book proposal, it's important for the author to make the time and effort to do the writing, since they know the book best. She suggests starting with a preview section that includes your platform and how you will be a partner in promoting your book. This will help to get the attention of the prospective agent or publisher, and make you stand out amongst other book proposals.
Thank you this was very helpful I am new author and learning as I go