My creative offspring have done a book together. It'll be out in spring of 2017 but is available for pre-order on Amazon. It's based on their successful Creative Sprint project.
You can be a part of the project. It's FREE! The next one starts in October. You just have to sign up at Creative Sprint HERE.
I participated twice and it was a lot of fun, and even though I make art daily, I was inspired by their prompts and ended up with a lot of ideas for new work. Try it, really, you'll like it.