In DITA, all content is chunked into topics. Topics are discrete units of information, organized around a single subject or answering a single question. Each topic makes sense on its own and can be authored as a stand-alone piece.

A topic is traditionally composed of a title and some content. That content can include:

• One or more sentences
• Tables
• Lists (bulleted lists, numbered steps…)
• Illustrations

The following topic, for example, answers the question “How do I take pictures in auto-adjustment mode?” It is composed of a title, some introductory sentences and a list of numbered steps.