This was my textbook for a 1 year teacher training program, that I'd entered with a BA but no previous education courses. I found this book very hard to "get into" and to follow, as it assumed a lot of knowledge of industry-specific terms. After gaining more experience in the education field (with what was taught in the course and gained from classroom and workshop experience) it started to make more sense. However, it tries to combine quite a variety of ideas from vague concepts to specific hands-on methods used in specific situations, so it's overwhelming for a beginner, I find.
It is also trying to indelibly impress the fact that teaching isn't just a "formula", but spends too much time and energy explaining everything in the context of the art vs. science / "artful science" metaphor. I feel I could draw my own understanding of the (relatively simple) "artful science" concept without all of the author's poetic endeavors.
It's also quite large and heavy, so while the coil binding allows you to open it to any page (with the cover folded against itself), the pages will tear if you move the book around too much in that position.