This book is actually a self-help book, and I got interested in it after Jessica Wildfire posted about it on Medium. I was able to buy a DRM-free e-book directly from the publisher, New Society Publishers.

The book doesn't get bogged down in scientific detail, and instead focuses on helping you through the process of coming to grips with the climate emergency. It then shows you how to get involved and actually make a difference.

There's little to fault this book, except that it's maybe too US-focused. That said, the advice can still be generalised to those of us outside the USA.