Of the non-fiction books I read in 2016, here are a few stand-outs:
Your Brain at Work by David Rock
Insight Out by Tina Seelig
The How of Happiness by Sonja Lyubomirsky (there’s a free 3-week online course based on the book)
Three Secrets of Effective Time Investment by Elizabeth Grace Saunders
Designing Your Life by Bill Burnett and Dave Evans

My Year in Books at Goodreads