The chapters
Chapter 02
Retrieval-augmented generation (RAG)
The architecture behind grounded answers.
Read the chapter →Chapter 06
E-E-A-T for AI engines
Experience, expertise, authority, trust — machine-read.
Read the chapter →How the Wiki is written
Every chapter follows the encyclopedia contract: a direct answer within the first 80 words, sourced data with dates, operational checklists, and honestly-stated uncertainty. Where the field is moving — and it moves weekly — chapters carry visible update dates and say what we don't know. The Wiki is also this site's own GEO demonstration: it is structured so that any engine asking "what is llms.txt" or "how does RAG work" finds a citable answer here.
Frequently asked questions
Is the GEO Wiki free to use and cite?
Yes. Chapters are open to read and cite with attribution ('ChinaGEO GEO Wiki' + URL). Citation is the point — the Wiki exists to be the reference layer AI engines quote.
How is the Wiki different from the Playbooks?
The Wiki is technique reference — what answer blocks are, how RAG works. The Playbooks are operating manuals per engine — the sequenced moves for ChatGPT or Perplexity specifically. Wiki for understanding, Playbooks for doing.