The book is called What Matters Now (PDF) and it’s a quick, wonderful read.
I finished it the other day while my students took their final exams. There’s quite a bit of useful information in it.
Except for page 27.
There, you see an equation from Christian financial man Dave Ramsey that makes no sense whatsoever:
(At least God isn’t in the denominator, or else we’d be dividing by 0 and the world would explode.)
Other than that blemish, I enjoyed the book