Books

1. Reinforcement Learning: An Introduction (2nd Edition) by Sutton and Barto, Oct 2018.
2. Algorithms for Reinforcement Learning (2009) by Csaba Szepesvari. Website.

Courses

1. Spinning Up in Deep RL!
2. David Silver's course (2015): Website — Videos.
3. CS 294 at UC Berkeley: Deep Reinforcement Learning (2017): Website — Videos

Resources

1. Andrej Karpathy: Deep Reinforcement Learning.