There are, of course, several publications on the market aimed at helping academics at this stage in their career, including William Germano's From Dissertation to Book and Getting It Published; Eleanor Harman's The Thesis and The Book; and Revising Your Dissertation: Advice from Leading Editors, edited by Beth Luey. I haven't read any of them, but I have been tracking down advice for PhD students from publishers such as Ashgate (here) and researching formats for book proposals.
There are several questions that I'm asking myself at the moment, particularly:
- "is my thesis best suited to publication as a book, or as a journal article or series of journal articles?"
- "to what audience would my book be addressed?"