Folium XThe Higher-Order Library
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Entrance A · Show me what it does

From a physical shelf to something you make.

Physical library → Exact copies → Retrieval → Relationships → Inquiry → Ask Folium X → Creation.

In development. Folium X has not been released. These describe what Folium X is being built to do; they are not features you can use today. On this site they are prepared examples, not the working app.

  1. 01

    Physical Library

    A private app for your physical library. Photograph a shelf and confirm each match. An uncertain edition stays marked uncertain.

    DESIGN PRINCIPLE See it in the sample library

  2. 02

    Exact Copies

    A work, an edition and the specific book on your shelf stay distinct, so two copies keep their own place, condition, inscriptions and history.

    DESIGN PRINCIPLE From the encounter page

  3. 03

    Retrieval

    A half-remembered line leads back to its note, its copy and its shelf.

    DESIGN PRINCIPLE From the encounter page

  4. 04

    Relationships

    Ask about one book or several—comparing themes, quotations, passages, characters and ideas, with follow-up questions and reading paths.

    DESIGN PRINCIPLE See it in the sample library

  5. 05

    Inquiry

    Compare passages, test a reading, and see where a connection holds or breaks. Work across the full texts the app can use, your notes and your catalogue, with the source of each answer visible.

    DESIGN PRINCIPLE From the encounter page

  6. 06

    Ask Folium X

    The app can offer questions; you decide what they mean in your life.

    DESIGN PRINCIPLE From the encounter page

  7. 07

    Creation

    Shape an essay, a reading path, a dialogue, a visual argument or a work of your own. Keep quotations, suggestions and your contribution distinct.

    DESIGN PRINCIPLE From the encounter page

The copy, not just the title

The distinction that makes everything else possible. Work, edition, copy: the reference page.

≠ Work ≠ Edition ≠ Copy

The text may be reproducible. Your copy is not.

The designDESIGN PRINCIPLEThe theory drawn onESTABLISHED THEORY Prepared demonstration — not live AI, not the app · illustrative records

Work

Pride and Prejudice · Jane Austen · 1813

Edition

not recorded for either copy

  1. Copy A

    Origin
    A gift from my sister
    Condition
    Pencil notes on a few pages
    Place
    Living room · Window bookcase · Shelf 02 · 3rd from the left
    Memory
    “I keep returning to the difference between a first impression and understanding someone.” (June 12, 2026)

  2. Copy B

    Origin
    Your grandmother’s name inked inside the front cover
    Condition
    Cracked spine
    Place
    Hall bookcase · second shelf
    Memory
    No reading memory recorded

Copy A is from the sample library; Copy B is the example on the reference page “Work, edition, copy”. Both are illustrative.

Try the prepared examples