Ask HN: Best books you've read in 2014

I've noticed that there is no consistent (best of) book list or recommendation that has been asked, while there are many for podcasts blogs etc. So I thought I'd ask, what are the best books you've read/listened to in 2014?

Here is my list:

1) Stumbling on happiness (reread) - Dan Gilbert - A fantastic book by a Harvard psychology professor on how we usually think about happiness, and what the current research actually reveals. Witty, sharp and extremely informative it's a great read.

2) The Kitchen Counter Cooking School - Kathleen Flinn - An interesting and funny book which reads much like a bunch of polished journal entries about cooking and the adventures of teaching culinary novices about the basics of healthy and tasty cooking. As a college student it is quite instructive in learning the ropes of becoming a functioning chef-for-one while juggling school and startups.

3) What Is Mathematics? - Richard Courant - A great introductory book for the laymen and mathematician alike, much like any good book written by an accomplished mind in a technical field it is both enlightening about the nuances of various areas of the field and a brief yet insightful introduction to each of these (number theory, geometry, topology and calculus).