Elena Kurazheva Kurazheva من عند 40422 La Estación, Segovia, إسبانيا
This book is great, and not just applicable to professional life aspects. Achor's work has far-reaching goals yet he presents it in a way that -- despite the yellow smiley face on the cover -- is not a "don't worry, be happy" soapbox, but a well-documented set of tools with potential to effect real change that feels doable, even to me with depression and a jaded sensibility. I actually listened to the audio book and then re-listened to a good portion of it, and then got the Kindle edition to reread it again.
I actually read the original 1972 version. It's amazing to me how many of these philosophies were incorporated, or completely opposed, by other religions.