When I was thinking about writing my first book, Peter Dougherty of Princeton University Press very kindly gave me some sample book proposals. Here are my book proposals in case you find them helpful when submitting your manuscript to a publisher. The first, for Rational Ritual, was written before I had finished the draft of the manuscript, and hence is fairly long. The second, for Folk Game Theory (which became Jane Austen, Game Theorist), accompanied the first draft of a completed manuscript, and hence is shorter.