I went into reading this book thinking that it would be more of an improvisational theatre game resource. While it definitely can be used as that, it's oriented towards attitude changing techniques, focusing heavily on changing a negative, unproductive attitude into a positive, innovative attitude in the workplace more than anywhere else.
There's noticeable overlap in the games themselves - writing lists, appreciating other people openly, making happen what you want to see happen - but they do offer different perspectives and intentions for playing that particular game.
The descriptions for the different days have some good tidbits of inspiration and some memorable quotes that have stuck with me throughout the week since I read them.
So, while I wouldn't recommend it if you're looking for improv theatre inspiration, I think it would be helpful for people who are looking for a way to jumpstart changing their mental ways or want to encourage their colleagues to do so as well.