It is a good book. Print is a little difficult to read, but a good read. Unfortunately, I didn't learn a thing from this book. We do every thing in this book. Sigh... we are out-and-out conserver's.
I've been researching the Minimalist movement as well. That I am not completely. I store things for later use and have more than 3 pairs of shoes (although all 2nd hand, free).
There is always somewhere that anyone can cut back on spending. I did love the example they gave of a newlywed college age couple. They both worked regular jobs, saved and saved for 6 months, then spent 3 months travelling Europe. That is great! Famine then Feast!