A Visual Annotation System

Book Brackets

Most books have hidden structure — arcs that span dozens of chapters, recurring locations, interwoven authors. Book Brackets makes that structure visible, at every level from verse to volume.

01

Pick a text

Any book with chapters — scripture, novels, histories, technical texts.

02

Choose a lens

Toggle between themes, locations, authors, or chronology with one click.

03

See the structure

Bracket overlays reveal arcs and patterns invisible in the prose.

Bracket overlays work at any level of a text's hierarchy.

Volume
Book
Chapter
Verse / Passage

Visualizations

Annotate your own books

Tools to create bracket overlays for any text are in development. Get notified when they launch.

About This Project

While serving in the Australia Perth Mission (1997–99), I developed a method of annotating scripture by writing short chapter summaries on lined paper then drawing bracket lines to group chapters by theme — marking where a narrative arc began and ended, where the same locations appeared, which chapters shared an author, and so on. The physical brackets made it easy to see structure at a glance without losing your place in the text.

I always wanted to digitize that idea. Book Brackets is that attempt: an interactive visualization that draws bracket overlays on chapter lists, letting you switch between different ways of grouping the same text. The method started with scripture but works for any book with chapters — novels, histories, technical texts, anything with structure worth seeing.

How it works

  • Each visualization shows a numbered chapter list with descriptive summaries
  • Topic buttons draw bracket overlays grouping chapters by theme, location, author, or chronology
  • Overview visualizations let you navigate into individual books
  • Chapter numbers link directly to the full text where available