Reinforcement learning is an entirely separate area of research from LLMs and, while often seen as part of ML (Tom Mitchell's classic Machine Learning has a gre

Reinforcement learning is an entirely separate area of research from LLMs and, while often seen as part of ML (Tom Mitchell's classic Machine Learning has a great section on Q learning, even if it feels a bit dated in other areas) it has little to do with contemporary ML work. Even with things like AlphaGo, what you find is basically work in using deep neural networks as an input into classic RL techniques. Sutton and Barto's Reinforcement Learning: An Introduction is widely considered a the definitive intro to the topic.