4.0

It would be five stars for the content of his message, but the occasionally rambling personal stories were sprinkled too liberally throughout the book for my taste.

Hari acknowledges that there are three kinds of causes of depression and anxiety -- biological, psychological, and social -- and keeps his focus pretty steadily on ways to address the social causes. The book is informative, reassuring, and inspiring.

"You aren’t a machine with broken parts. You are an animal whose needs are not being met."

(to really round out the whole needs-not-being-met discussion, I'd complement this with something like Andrew Weil's Spontaneous Happiness)