I've been rewriting and editing like crazy, and my agent thinks I should start trying to get published, and should write a cover letter to go with the MS. What is in the perfect cover letter? What is not in it? How long should be it? My novel got to the quarter finals of the Amazon Breakthrough Novel Award. How much should I push this? Should I quote the judge's comments? How much personal information should I give? Is there anything extra I can do to make my letter stand out?