Employ the basic query format: a 3-paragraph letter with a salutation, book description & bio.
But if you’re really confident in your letter-writing prowess, feel free to mix it up! The best letters convey the tone of the book, and my favorite query letter of all time (Gennifer Albin’s letter for Crewel, which is coming out from Farrar,?Straus?and?Giroux Books for Young Readers next fall) actually started with a few lines from her preface, which captured the spirit of the book perfectly. (Just be sure to include the other elements on this checklist, regardless of your approach.)”