This is a very clear and accessible book for learning therapists to explore some of the techniques, theories, and challenges related to treating trauma and attachment issues in their patients. I enjoy Shapiro's effective writing style and her emphasis on techniques, while also talking about the theoretical basis of said techniques. I think anyone looking to engage in long term therapy and even the more manualized approaches seen in CBT, for example, can get some great ideas and refreshers from this book. I enjoyed finding connections with the content of this book and things I have learned in my other classes, as well as using it to reflect on my internship experience so far.
I do not think this book is appropriate as an introductory text, so I would suggest it be read after an undergraduate course in psychology and some time in a clinical/counselling graduate program. This largely has to do with the very specific nature of the content, the use of some jargon, and that it is very brief on covering major concepts that you do need to already have some knowledge and experience with.
If a critique, though more likely just a suspicion of "I'll believe it if I see/do it", there are some of the direct techniques and dialogues from this book that I find unrealistic or think of as difficult to implement. I guess at the end of the day, it is more about using that as a general idea, getting more training, and then being able to apply it more specifically to appropriate patients. There is also, overall, a very strict theoretical focus on attachment style and trauma, at the silence of other theoretical lenses, but the book does acknowledge this and, indeed, says it is such a book. Plus, it does reinforce the idea of learning and growing with a range of theoretical lenses rather than sticking to your usual guns.
All in all, a very nice, quick book and a great read for any therapist in training. Certainly up there with Louis Cozolino's The Making of a Therapist: A Practical Guide for the Inner Journey.