You may not yet have heard of Amy Hunington, but something tells me you will. I posted info about her deal here a few months ago. But here is info about her deal in her own words (including the actual query letter), from her blog.
How It Happened: The Scoop On My Book Deal for SLEEPWALKING
I know I’ve only given you, Chitlins readers, the bare-bones story of how I got a three-book deal for SLEEPWALKING. Since I didn’t actually put pen to paper-contract until three weeks ago, I was feeling too superstitious to go into detail about it. But since several of you have written to ask me how it happened (amongst you a few aspiring writers), here's the story.
I told you about the process of writing the book.
Well, in late August I sent a few chapters of the manuscript to Stacey, my agent. She was enthusiastic. So, after fiddling with the text for a bit longer, I sent her the complete manuscript in October. She was even more enthusiastic.
And here is where the incredible time-line starts. November 5th Stacey and I had a phone chat to talk about some changes she wanted me to make before sending it to publishers. She asked me if I had written a query letter or pitch for the book that I might want her to use. I worked on a pitch letter that I felt was representative of the book and sent her this: Read the rest.