- pages
- 336pages
- chapters
- 25chapters
- charts and visual maps
- 42charts and visual maps
- real Antropus screenshots
- 8real Antropus screenshots
Free book · PDF and EPUB
Download the GEO book for free
“GEO: El SEO para la era de la IA” (SEO for the AI era), by Asier López Ruiz.
How to show up in ChatGPT when your customers search for what you sell. The complete methodology to get language models to choose you, cite you and recommend you.
Written by Asier López Ruiz, CEO of Elevam and Antropus.
Inside
Flip through the book before you download it
Four real pages from the PDF edition (in Spanish): this is how it is laid out from start to finish.
Opening of Part I 
Chapter 1: Deprogramming SEO 
Charts with their source 
Real Antropus screenshots
Introduction
The figure that changes everything
88%
of the sources cited by AI assistants don’t appear in Google’s Top 10 for that same prompt.
60%
of searches end without anyone clicking on anything.
AI chooses its sources with different criteria: semantic relevance, information density and authority perceived in context. It doesn’t care whether you ranked first on Google. It cares whether your content answers the question better.
GEO
What GEO is and why it’s the answer
People no longer search the same way. Now they ask ChatGPT, Perplexity, Google with AI. And those systems don’t show ten blue links: they generate an answer and mention two or three sources. If you’re not one of those sources, you don’t exist.
GEO (Generative Engine Optimization) is the discipline that turns you into that source. It’s the way to build your digital presence so that language models choose you, cite you and recommend you when someone asks the question that matters for your business.
And no, GEO doesn’t kill SEO. It extends it. Everything you’ve built in SEO still works, but it’s no longer enough: you need an extra layer to understand how AI thinks, which sources it chooses, why it ignores you and how to change that.
Outcomes
What you’ll be able to do when you finish this book
Not “learn GEO”, which is vague and commits no one. This is exactly what you’ll be able to do:
- 01
Audit
Know whether AI is ignoring you or citing you, with concrete data and a reproducible methodology.
- 02
Restructure
Reorganise your website so that language models choose you as a source instead of your competitors.
- 03
Measure
Check month by month whether you’re gaining or losing ground in the answers of ChatGPT, Perplexity and Google AI Overviews.
- 04
Systematise
Build the complete system: measurement, diagnosis, execution and monitoring. Not a one-off check, but an ongoing process.
- 05
Sell
If you run a team or a consultancy, package and sell this service with a professional proposal, contract, pricing and reporting.
Contents
What’s inside: 9 parts and 25 chapters
From the psychology of a language model to an automated measurement pipeline, web architecture, advanced schema, entity management and reputation.
Titles translated into English for reference: the book is in Spanish.
Introduction: Why this book and why now
Part I
The paradigm shift
From the SEO you knew to a world where AI decides who exists.
- Ch. 1Deprogramming SEO — Welcome to the game you no longer control
- Ch. 2How an AI “thinks” when it answers — Anatomy of the generative answer
- Ch. 3What GEO is NOT — Clearing the smoke
Part II
The engineering behind visibility
What you need to understand about LLMs to stop optimising blind.
- Ch. 4RAG 101 — Retrieval is your only ticket in
- Ch. 5From keyword to vector — Embeddings, distances and the new semantics
- Ch. 6Context windows and query types — The rules of the board
Part III
Web architecture for the AI era
How to build a site that AI wants to use as a source.
- Ch. 7Advanced RAG — Retrievability, internal ranking and citation
- Ch. 8Your “Source of Truth” — The canonical page AI needs
Part IV
Measurement: what you don’t measure doesn’t exist
The complete system to know whether AI sees you, cites you or ignores you.
- Ch. 9The five metrics that matter — Measuring visibility in LLMs without superstition
- Ch. 10Test Suite — Prompt Set, experimental methodology and traceability
- Ch. 11Complete GEO audit — An X-ray of your presence in AI
Part V
Prioritisation and execution
Separating what moves the needle from what only looks important.
- Ch. 12Impact vs. noise — Heuristics so you don’t waste time
- Ch. 13Writing for AI without ceasing to write for people
- Ch. 14Every token counts — Optimising semantic clarity
- Ch. 15Advanced schema for GEO — Beyond generic JSON-LD
Part VI
Entity, reputation and authority
Building the brand AI wants to recommend.
- Ch. 16Consolidate your entity — Aggressive disambiguation and category consistency
- Ch. 17Off-site — Co-occurrence and brand association
- Ch. 18Reputation and sentiment — When they recommend you with an asterisk
Part VII
Strategies by platform and vertical
Every engine and every sector has its own rules.
- Ch. 19Master the engines: Google, Perplexity, ChatGPT and Gemini
- Ch. 20GEO by vertical — Local, e-commerce, SaaS, B2B
Part VIII
Execution, automation and business
From plan to system. From system to sellable service.
- Ch. 21Operational roadmap — 90 days of GEO + maintenance
- Ch. 22Automation and tooling — From the manual spreadsheet to the AI pipeline
- Ch. 23Packaging and selling GEO+SEO services
Part IX
Security, ethics and frontiers
What you shouldn’t do. What nobody tells you. And what’s coming.
- Ch. 24Security, ethics and what’s off-limits — The lines you must not cross
- Ch. 25GEO Labs — Ongoing research so you don’t get left out of the model
- Epilogue:Your next move
- Glossary:Elevam’s GEO glossary: a technical dictionary from A to Z
Audience
Who this book is (and is NOT) for
It’s for
- Business owners with a digital presence who feel something is slipping away from them.
- SEOs and marketers who want to lead the transition instead of suffering it.
- Consultants and agencies who want to offer a service their competitors don’t understand yet.
- Anyone who understands that the paradigm shift is already here and that the window of opportunity won’t last forever.
It’s not for
- Anyone who needs a digital marketing foundation: it doesn’t explain what a CMS is, how Google Ads works or what SEO means.
- Anyone looking for “quick SEO tricks”.
- Anyone who wants to manipulate rankings with shortcuts.
- Anyone who expects a plugin to sort their life out.
If you recognise yourself in this, this book was written for you.
The author
About Asier López Ruiz
Founder and CEO of Elevam and Antropus
Asier runs Elevam, a digital marketing agency based in Reus, Spain (formerly FullSEO and FullWeb), specialising in SEO and GEO: search engine and generative AI optimisation.
Elevam ranks no. 1 in MarketingDirecto’s first ranking of GEO agencies in Spain (March 2026), with 86/100.
He is also CEO of Antropus, the SEO and GEO measurement platform built at Elevam.
See Asier’s profile«What you’re about to read isn’t theory. It’s the same methodology I apply with my clients every week. And this book is what I wish I’d had when I first began to understand that the SEO we knew was about to become insufficient.»
Questions
Frequently asked questions about the book
Is the book free?
Yes. We only ask for your name, email address and phone number. When you submit the form you download the book right away; the download links work for 7 days.
What formats is it available in?
PDF and EPUB. The EPUB is designed for e-readers and reading apps. The book is written in Spanish.
Who is the book for?
For business owners with a digital presence who feel something is slipping away, for SEOs and marketers who want to lead the transition instead of suffering it, and for consultants and agencies who want to offer a service their competitors don’t understand yet.
What is GEO?
GEO (Generative Engine Optimization) is the discipline that turns your brand into one of the sources that ChatGPT, Perplexity or Google with AI choose, cite and recommend when someone asks the question that matters for your business. It doesn’t replace SEO: it extends it.
Do I need to know SEO to read it?
A foundation helps. It isn’t a digital marketing course for beginners: it doesn’t explain what a CMS is, how Google Ads works or what SEO means. If you already work in SEO or digital marketing, it’s for you.
What do you do with my data?
Fullseo S.L.U. (Elevam) processes it to send you the book and to contact you about it, only if you agree in the form and in accordance with the privacy policy, which explains how to exercise your rights.
There are two ways to make the most of this book
Use it as an internal roadmap to build your GEO system from scratch, or to understand exactly what you need and delegate the implementation to Elevam. Whatever you decide, start by reading it.
The book is in Spanish.