This book has an absolutely beautiful cover, which I very much appreciate! The inside contents are also aesthetically-pleasing, with bulleted information in places to break up paragraphs for readability.
In terms of the title, stating that what is inside is "all you need to know" is pretty heavy, but this book delivers. It goes through all steps, including writing a dissertation, and explains how action research has developed. Something I appreciated was that it gave clarity on qualitative research, such as epistemologies etc.
Something else that is great about this book is how accessible it makes action research. Perhaps that's just with action research in general, as I read a book yesterday that was the same way with the topic, but I love books that invite all practitioners to engage in research. I'm really sick of academics who haven't been inside a classroom in 10+ years using other people's students to further their tenure promotions, etc.