Grammarwitch turned my good manuscript into a great book with editing that ran the range from basic comma corrections to lofty concepts. She gently and kindly told me I needed to write a whole new first chapter, and she was right. She has a fine eye for underrated details like fact checking and political correctness, and she’s got a great sense of humor that makes her fun to work with. She was also mind-bogglingly patient with my regular crises of confidence I’m sure all authors go through.