Typography category

Composition

Line endings, paragraph shape, white-space patterns, hyphenation, and page-level rhythm.

6 complete rulesRelated rule pathsQA mappings
Browse Composition

Definitions, examples, judgment, and implementation.

CompositionStrong composition convention

Widows & Orphans

A widow or orphan is an isolated line of a paragraph separated from the lines it belongs with at the top or bottom of a column or page.

WIDOWORPHAN
Read the rule
CompositionConfigurable composition heuristic

Short Last Lines

A short last line is a paragraph ending whose occupied width is small enough to look weak, ambiguous, or visually detached.

SHORT_LINE
Read the rule
CompositionVisual composition heuristic

Rivers of White Space

A river is a conspicuous vertical or diagonal path formed by aligned word spaces across neighboring lines.

RIVER
Read the rule
CompositionConfigurable composition convention

Hyphenation Ladders

A hyphenation ladder is a run of consecutive lines ending in hyphens beyond the publication’s tolerated limit.

HYPHENATION
Read the rule
CompositionVisual composition heuristic

Bad Rag

Rag describes the changing edge of unjustified text; a bad rag contains distracting shapes, abrupt steps, or accidental patterns.

BAD_RAG
Read the rule
CompositionDesign-system convention

Vertical Rhythm

Vertical rhythm is the repeated spacing pattern created by leading, paragraph spacing, baselines, and aligned text structures across a layout.

RHYTHMVERTICAL_RHYTHM
Read the rule