Jane Friedman's, the one on Writer's Digest, or the oft-cited Query Shark site. This post is about how to write an enticing query letter for Pitch to Publication.
How is the P2P QL similar to a QL for an agent?It's not that writing a query letter for Pitch to Publication is entirely different from writing one for an agent; there are definitely some guidelines that apply to both.
Your Pitch to Publication query letter should include the book data (title, target audience, genre, word count, comps if you can/want to), hook, bio, and thank you.
As with any good hook, I want to know about the setting, MC(s), premise, goal, and stakes. The best query letters also have a strong voice that reflects the voice of the novel; it's a window into what I can expect when I get to the pages. Your hook is the mini-synopsis; it should be no more than three paragraphs, and aim for 7-11 sentences total.