# Page Type Catalog

Select a page by the communication task, not by decoration.

| Type | Use when | Required structure | Avoid |
|---|---|---|---|
| `cover` | opening the learning experience | title, value line, restrained metadata | agenda copy, dense credentials |
| `agenda` | showing the route | 3–5 named stops in sequence | long module descriptions |
| `chapter` | resetting attention | index, chapter title, one transition line | teaching detail |
| `statement` | landing one judgment | one large statement, one support line | three equal conclusions |
| `text-visual` | pairing accuracy and relationship | concise copy plus editable scene | decorative stock image |
| `comparison` | contrasting two or three things | same comparison dimensions | mismatched evidence |
| `flow` | showing ordered actions | verb-led nodes and direction | implied or circular order |
| `timeline` | showing change over time | milestones, time/order labels | unordered categories |
| `matrix` | classifying by two dimensions | named axes and four quadrants | invented axis values |
| `architecture` | showing layers or containment | clear layer order and boundaries | a generic stack with no meaning |
| `swimlane` | assigning work across roles | lanes, actions, handoffs | using lanes as colored rows only |
| `cycle` | showing repetition and feedback | loop direction and return condition | a process that actually ends |
| `ipo` | explaining transformation | input, processing, output | hiding the transformation logic |
| `table` | preserving exact comparable values | headers, units, source note | turning exact values into loose cards |
| `case` | applying an idea to a supplied situation | context, move, result/evidence | invented outcomes |
| `exercise` | creating learner action | task, timebox, output, completion signal | vague discussion prompts |
| `summary` | consolidating supplied conclusions | 3–5 takeaways | introducing new content |
| `qa` | closing and opening discussion | Q&A cue and optional prompts | another summary page |

## Rhythm check

After every 3–4 information-heavy pages, introduce a different attention mode: statement, chapter, case, exercise, or visual relationship. Do not rotate page types mechanically; let the content task drive the choice.
