The Little Book of Reinforcement Learning

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Summary

A concise introduction to Reinforcement Learning, from basics to applied algorithms, with PyTorch implementations and supplementary proofs.

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alxndrTL/little-book-rl

Source: https://github.com/alxndrTL/little-book-rl

The Little Book of Reinforcement Learning

This is the associated GitHub page of the Little Book of Reinforcement Learning.

This book is a short introduction to Reinforcement Learning, from the basics to applied algorithms.

book

In this repo, along with the book itself, you can find the supplementary material of the book. More precisely:

  • under the algos/ folder, the Pytorch-based implementation of the different algorihms covered in the book, from MC to PPO.
  • under the supplementary/ folder, you can find detailed explanations and rigorous proofs for the dynamic programming algorithms briefly covered in the book. This is a document I wrote in 2021.

More material is subject to be added along the way in this repo.

You can print one for youself here.

Versions of the book :

  • V1 (June 2026)

The book is distributed under a non-commercial Creative Commons license (CC BY-SA 4.0).

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