My 3 favorite non-fiction books are:
* Mindset by Carol S. Dweck
* Innovating: A Doer's Manifesto for Starting from a Hunch, Prototyping Problems, Scaling Up, and Learning to Be Productively Wrong by Luis Perez-Breva
* Fall In Love with the Problem, Not the Solution: A Handbook for Entrepeneurs by Uri Levine
These three books really changed my viewpoint and I've been rereading them every year.