Microsoft OneNote is a digital note-taking application within the Microsoft 365 ecosystem, designed to capture, organize, and share information across devices. Unlike linear note-taking apps, OneNote provides a free-form canvas where text, images, drawings, and multimedia can be placed anywhere on a page, making it exceptionally flexible for diverse workflows from meeting notes to research journals. The application's defining strength lies in its hierarchical structure (notebooks → section groups → sections → pages → subpages) combined with powerful search capabilities including OCR on images and handwritten text, enabling users to retrieve information instantly even from years-old notes scattered across dozens of notebooks.
What This Cheat Sheet Covers
This topic spans 16 focused tables and 157 indexed concepts. Below is a complete table-by-table outline of this topic, spanning foundational concepts through advanced details.
Table 1: Notebook Hierarchy and Organization
Understanding OneNote's five-level hierarchy is the single most important foundation for using it effectively. Mastering when to use section groups versus sections — and pages versus subpages — determines how easily you can navigate and scale a notebook over time.
| Element | Example | Description |
|---|---|---|
Work 2026Personal Projects | • Top-level container storing all related content • typically stored in OneDrive or SharePoint for cross-device sync. | |
Meeting NotesIdeas | • Container for related pages • appears as tabs across the top (or side) of the window • can be color-coded for visual organization. | |
2026-03-18 Team SyncProject Brainstorm | • Primary canvas for content • includes an optional title area at the top and unlimited space below • pages listed vertically in the navigation pane. | |
├─ Action Items├─ Follow-up | • Page nested under a main page to create hierarchy • supports up to two levels of indentation • visually indented in the page list. |