Hello! I really think that I can help you out with your book. Currently, I work as a full-time freelancer and edit over 36,000 professional articles for companies all over the USA and Australia. This means that I can adapt easily to a variety of writing styles. I have mastery of both American and British English grammar, so if you have a preference as to which format we use, I can be flexible.
I can also use APA, MLA, Chicago, and AP styles. If you need formatting/designing for your book, I can do this as well. I believe that I am highly qualified for this task and am sure that I will exceed your expectations. I look forward to working with you!