Too many words, too little content. Bought, because it was listed in references in college wellness class. Class Prof did a good summary of entire book in 5 minutes. Net, one valuable core idea, surrounded with fluff and verbosity. Front chapters rambling about "20 years ago I ran a test with students" that ....... So, I ran another study, and another, and another....... Oh, and I talked to a guy in East Germany before the wall came down, and that showed me....... All in many, many, many words.
Also, seemed like many articles tacked together without good transition; thus hard to see where she is going or how what was just covered is relevant to next chapter. Then once she does introduce the core concept - WOOP, it seems like the WOOP button is stuck on and constantly repeated.