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Now risingThe library of the Civilization Upgrade

The new library for the new civilization.

NEO Library is the new library for the new civilization. It gathers science, culture, art and society, ancient and new, orders them with library science and SESY.AI, our semantic artificial intelligence, and opens them to every person, in every language. Build it with us.

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  • 6Libraries open
  • 4Pillars of knowledge
  • 4Languages
  • 1999Building systems since

Created by Librarian Joséf Sánchez Coach (UNAM), author and founder. NEO Library is his life's work; SESY.AI is the technology he created for it.

A round sun rising over a Caribbean beach: the dawn of the new library

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Fund open knowledge for the new civilization.

Every contribution funds new libraries, open collections, translations, publications, field work and the infrastructure that keeps knowledge open and well ordered.

GoFundMeSupport for libraries, field work, hosting and open collections.Give on GoFundMe KickstarterBacking for library launches, translations and printed books.Back on Kickstarter PatreonMonthly patronage for the libraries.Become a patron

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NEO library.org is the professional project of Librarian Joséf Sánchez Coach, a persona física registered with SAT. Funds are received in his name. Contributions are not tax-deductible donations. How funds are used.

Library

Six libraries, open and growing.

From the Maya and the Mexica to the whole world. Each library is a collection of NEO library.org, ordered by one catalogue. NEO also learns from the great national libraries, and it is the life's work of an independent academic.

Maya–Mexica TourDeparts 11 November 2026.Sponsor the tour

Explore the libraries The life's work

The founder

One author, one life's work, one technology.

Librarian Joséf Sánchez Coach (UNAM) is the author, founder and creator. NEO Library is his life's work: the new library for the new civilization. SESY.AI is the technology he created: the newest technologies applied to information, communication and telecommunication systems, built for the NEO libraries and the whole Civilization Upgrade.

The author · the work · the technology

Librarian Josef S.Author, founder and creatorNEO LibraryLife's workSESY.AIThe technology
Meet the author josef.sesy.ai
Librarian Joséf Sánchez Coach greeting with his hands together
Librarian Joséf Sánchez CoachAuthor and founder

How it all fits

The whole system, at a glance.

The author creates. SESY.AI powers. NEO Library opens knowledge to everyone. Contributions, clients and the shop keep it alive.

Joséf Sánchez CoachAuthor, founder and creatorLearn more
NEO LibraryThe life's work · six librariesLearn more SESY.AIThe technology · Semantic Systems & AILearn more

What sustains it

Open knowledge: free for every reader, never for sale.

Philosophy

A new order of knowledge.

Science, culture, art and society, ancient and new. Five Neo Laws that extend Ranganathan's five for the age of AI, sixteen new concepts, the method and the author, grounded in library science.

Sánchez González, José Fernando (2014)

Read the philosophy The Neo Laws
  1. Knowledge is for life.
  2. Every reader their knowledge, human or machine.
  3. Every knowledge its source.
  4. Save the time of the reader, and protect the reader's judgment.
  5. The library is a learning organism.

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Wear the library.

Mayan Library cultural slow fashion: oversized, organic and heavyweight cotton, made on demand. Every purchase funds the libraries; the knowledge itself is never for sale.

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Embroidered Sweatshirt, Black
Mayan Library · Cultural Slow Fashion

Embroidered Sweatshirt, Black

Oversized, heavyweight, unisex. Embroidered detail.

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Embroidered High-Neck Tee
Mayan Library · Cultural Slow Fashion

Embroidered High-Neck Tee

Oversized organic cotton, unisex. Embroidered detail.

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Heavyweight Cotton Hoodie
Mayan Library · Cultural Slow Fashion

Heavyweight Cotton Hoodie

Oversized cotton, unisex. Printed all over.

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Heavyweight Cotton Tee
Mayan Library · Cultural Slow Fashion

Heavyweight Cotton Tee

Oversized cotton, unisex. Printed all over.

$99 USDBuyAsk
Organic Cotton Sweatshirt
Mayan Library · Cultural Slow Fashion

Organic Cotton Sweatshirt

Oversized organic cotton, unisex. Printed all over.

$122 USDBuyAsk
Organic High-Neck Tee
Mayan Library · Cultural Slow Fashion

Organic High-Neck Tee

Oversized organic cotton, unisex.

$99 USDBuyAsk
SESY.AI

Tech

SESY.AI, our semantic technology.

SESY.AI orders knowledge by meaning. It catalogues, translates, relates and answers, always citing its sources, on infrastructure we own and operate. Its services to businesses and institutions fund the libraries.

The technology Hire SESY.AI
  1. ServicesSites, hosting, automation and AI for businesses.
  2. IncomeClient projects, the shop and memberships.
  3. LibrariesCollections, translations and field work.
  4. Open knowledgeFree for every reader, never for sale.

Members

Become a member.

Free for every reader. Join as a reader, contributor, patron or organization: membership begins with one message to the librarian.

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Contact

Follow, share and write to us.

Every like, every share and every message makes the library grow. The librarian answers every message personally.

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References and credits

Bibliography, frameworks and the tools that built NEO library.org

Two ways to build it

Contribute, or put SESY.AI to work.

NEO Library lives on two things only: contributions, and the work of SESY.AI. Both keep knowledge open and never for sale.

Stay close to the library.

Subscribe to the mailing list, follow the libraries and share them. Every reader makes the library grow.

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