Elith Inc. is pleased to announce that "How Large Language Models Work: Learn by Building One," a book to be published by Nikkei BP on March 20, 2026, has achieved the following rankings on Amazon Best Sellers (as of March 17, 2026).
- "Introduction to Programming" category: No. 1
- "Software Development & Languages" category: No. 1
- "Development Techniques" category: No. 2
The book takes the large language model (LLM) "GPT," the foundational technology behind tools such as ChatGPT, as its subject, systematically explaining everything from the basics of the Transformer to the implementation of a GPT model. Through PyTorch code and diagrams, readers can understand how modern AI technology works by getting hands-on.
It also covers practical topics such as alignment techniques (SFT, DPO), reasoning models, and distributed training across multiple GPUs. With three approaches — diagrams, implementation code, and theoretical notes — the content is designed to be easy for beginners to understand.
For details and to purchase, please see the Amazon page.
Book overview
- Title: How Large Language Models Work: Learn by Building One
- Release date: March 20, 2026
- Authors: Koki Inoue, Ryuta Shimogauchi, Naoya Takashima, Fubuki Sawa
- Purchase link: https://www.amazon.co.jp/dp/4296205250/
- Nikkei BOOK Plus "Everyday 'Introduction'":https://bookplus.nikkei.com/atcl/column/032900009/031101220/index.html?n_cid=nbpbkp_twed