A Note
From Robbie On How to Prepare a Prospectus

A good book prospectus should include:

(1) a working title for the book and the names of the author(s) or editor(s), plus their full contact information;

(2) a short and snappy book description and a longer description that fleshes out the concept behind and the rationale for the book;

(3) a section describing the book's targeted audience and potential marketing strategies;

(4) a literature section describing what else is out there on the topic and how this book will (a) build on what went before and (b) be unique and new. Ideally, this literature section might also include sales figures for comparable books, if you can get them, including for any books you yourself have published;

(5) a paragraph describing the projected timetable for completing the book;

(6) an overview of the book sections (when relevant) describing each section and the rationale for its organization (this can be included in the Table of Contents);

(7) a full Table of Contents with short descriptions of each chapter--always make it clear how each chapter relates to the book's overarching rationale or theme;

(8) it's wise to include fairly detailed (but snappily written) bios of each principal author/editor, and shorter bios of any contributors. Make the bios interesting and fun, not boringly academic. Showcase your writing style throughout--go over the prospectus with a fine tooth comb to make sure it's grammatically correct, contains no typos or spelling errors, is attractively formatted, and is written in an engaging style.