Playborhood, the blog and movement, has written a book.
To quote the book's description from Amazon:
"In Playborhood: Turn Your Neighborhood Into a Place for Play, you’ll
find inspiring stories of innovative communities throughout the US and
Canada that have successfully created vibrant neighborhood play lives
for their children. You’ll also get a comprehensive set of step-by-step
solutions to change your family and neighborhood cultures, so that your
kids can spend less time in front of screens and in adult-supervised
activities, and more time engaging in joyful neighborhood play."
Sounds wonderful. I'll have to get me a copy.