It's a craft book but I just finished Romancing the Beat by Gwen Hayes as research for my NaNoWriMo project. I'm writing a romance novel for the first time (eeeepppp) and it was suggested to me by fellow writers. It's a super fast read and so easy to understand. She's got a ton of movie and music references mixed in and it is so relatable. I highly recommend it for writers (and readers too!).