Update README.md

add book: BUILD GPT: HOW AI WORKS

README.md

@@ -484,6 +484,7 @@ The above tables coule be better summarized by this wonderful visualization from
 ## Books
 - [Generative AI with LangChain: Build large language model (LLM) apps with Python, ChatGPT, and other LLMs](https://amzn.to/3GUlRng) - it comes with a [GitHub repository](https://github.com/benman1/generative_ai_with_langchain) that showcases a lot of the functionality
 - [Build a Large Language Model (From Scratch)](https://www.manning.com/books/build-a-large-language-model-from-scratch) - A guide to building your own working LLM.
+- [BUILD GPT: HOW AI WORKS](https://www.amazon.com/dp/9152799727?ref_=cm_sw_r_cp_ud_dp_W3ZHCD6QWM3DPPC0ARTT_1) - explains how to code a Generative Pre-trained Transformer, or GPT, from scratch.
 
 
 ## Opinions