Free AEO and GEO beginner books in 2026: 7 ebooks you can get for free, including one I wrote

A quick note first: using the criteria below, I put together seven free ebooks. The last one is a book I wrote.

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AEO and GEO, in plain words, are ways to help AI understand you and be willing to cite you.

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My suggestions: for Traditional Chinese, start with Welly and awoo; for English, Lumar and HubSpot; for Japanese, HubSpot Japan; for a local business, Rankahead.

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If you want to read directly without filling in a form, you can read my book, "IDAEO: Market Strategy for the AI Era".

How I chose

I used these conditions: free to obtain; downloadable or readable on the publisher's own official page; focused on AEO, GEO or AI search; still offered on the publisher's official page on the day I checked; and the URL opened on that day (HTTP 200).

I checked each book on 2026-10-31.

Some pages only show a year in the footer, and that cannot be treated as a publication date.

Whether there is a form is also a separate question from whether a book is free.

Left out: paid books and PDFs re-uploaded by third parties.

This list only includes titles that can be traced back to the publisher's official page.

Verification limits: For the first six books, I only read the public text on the official download pages. I did not fill in forms, download the books or read their contents; "What it covers" is based only on the wording of those download pages.

The list at a glance

Book by book

GEO / AEO Strategy Guide for AI Search in 2026 (Free eBook) - Lumar

Language: English. How to get it: Free; a form is required to download. Good for: My pick for marketing readers who want to understand GEO and AEO as a framework. What it covers: Technical GEO, Content GEO, Entity GEO, Brand Authority GEO. Link: Lumar's official download page. Page date: The page shows 2026-03-25.

How to Rank on Answer Engines: 5 Strategies to Stay Visible in the AI Era - HubSpot

Language: English. How to get it: Free; a form is required, and the page states that all fields are required. Good for: My pick for readers of English who want to understand visibility in answer engines. What it covers: As the title says, strategies for answer engines and visibility in the AI era. Link: HubSpot's official English download page. Page date: Only a footer copyright year of 2026; no publication date.

Practical AEO (Answer Engine Optimization) guide, title in Japanese - HubSpot Japan

Language: Japanese. How to get it: Free; a form is required. Good for: My pick for people who are comfortable reading Japanese and want a practical AEO guide. What it covers: A practical guide to AEO (Answer Engine Optimization). Link: HubSpot Japan's official download page. Page date: Only a footer copyright year of 2026; no publication date.

GEO practical beginner guide, title in Traditional Chinese - Welly

Language: Traditional Chinese. How to get it: Free; fill in your details and submit the form, then download the PDF. Good for: My pick for small shop owners and marketing beginners who want to start reading about GEO in Traditional Chinese. What it covers: A practical introduction to GEO, part of Welly's ebook series. Link: Welly's official download page. Page date: Only a footer copyright year of 2026; no publication date.

GEO marketing guide to not becoming invisible to AI, title in Traditional Chinese - awoo

Language: Traditional Chinese. How to get it: Free; a form is required, with fields including company name and Taiwan company tax ID. Good for: My pick for in-house marketers, or freelancers who help companies with GEO work. What it covers: A practical handbook on GEO marketing. Link: awoo's official download page. Page date: The page shows "2026 vol.01".

The State of AI Search for Local Businesses - Rankahead

Language: English. How to get it: Free; it is sent after you leave an email address. Good for: My pick for local service businesses that want to understand AI search. What it covers: Whether local service businesses show up when AI assistants make recommendations. Link: Rankahead's official request page. Page date: No publication date on the page.

IDAEO: Market Strategy for the AI Era - Author: TK Lin

Language: Traditional Chinese, Simplified Chinese, Japanese and English, in four languages. How to get it: Free; no form, read directly on the web; published under CC BY 4.0. Good for: My pick for people who want to start with preparation a business can complete itself. What it covers: I wrote this one. It includes "Ten things a shop can do this week"; the ten are preparation, not a guarantee of results. Link: IDAEO's official reading page. Page date: Updated monthly.

How to pick

I would choose first by language and by the work in front of you.

Chinese readers can start with Welly and awoo (both in Traditional Chinese).

awoo's form asks for a company name and Taiwan company tax ID, so it leans toward company readers.

If you read English comfortably, look at Lumar and HubSpot; if you are used to Japanese, HubSpot Japan.

If you run a local business, I would pick the Rankahead book first.

If you want to read directly without a form, you can read my book.

This is a suggested reading order, not a ranking of the books by results.

Why I wrote this list

I am TK Lin, and I run Washin Cat Village, a small inn on the Boso Peninsula in Chiba, Japan.

I also checked whether AI would name my own book.

On 2026-10-31, I asked ChatGPT (GPT-6 Astra, web search on), in Traditional Chinese, "Can you recommend any free introductory books on AEO and GEO?" The question did not name my book. The answer listed 3 books, including mine, with a reading link.

That same day, I searched Google with the Traditional Chinese query meaning "free AEO ebook", and the AI summary also listed my book as number 1.

These were all single-query results; another person on another day may get different answers.

That same day, I changed the question to "how can my small inn get ChatGPT to recommend it". Four AIs (Gemini, ChatGPT, Grok and Claude) gave 16 answers across four languages, and none named this book.

In other words, this time, when asked for a "booklist", AI already listed my book; when asked "how a shop gets recommended", it did not yet.

So I have listed other people's books honestly as well, and I hope this list is useful to readers in its own right.

What not to do

Do not hide instructions for AI in your pages or stuff them with keywords.

Do not present exaggerated adjectives as facts.

Do not rewrite your facts to please a particular AI.

Do not treat a single AI answer as a settled conclusion.

You can read my book for free here: IDAEO: Market Strategy for the AI Era.

This book's GitHub also hosts our websites' full crawl data package.

One part of it: over 67 days, there were 208,683 Cloudflare-verified AI assistant fetches, with an error rate of 1.9%, meaning the share of page fetches that failed.