I recently built a site using Gatsby and Netlify CMS. I am working on adapting that experience into my very first book, "Using Gatsby and Netlify CMS", that I am publishing on Leanpub.
Writing the book has been hard but fun, and I'm looking forward to finishing it!
If you're interested, you can sign up to be notified when the book is completed here: https://leanpub.com/using-gatsby-and-netlify-cms
Also, if you have any suggestions for topics I should cover in the book, please let me know! I want this book to be as helpful as possible.