This book provides a detailed description of the note-taking program OneNote. OneNote is available for Windows computers and Macs, as well as an app for mobile phones, iPads, iPhones, and Android devices. When notebooks are stored on a central server or in an internet cloud, they are accessible from anywhere. Students who cannot attend classes can then access the shared learning materials via the internet. Collections of tasks, formulas, and literature in notebooks facilitate preparation for class tests, exams, and final assessments. OneNote is particularly suitable for notebook and tablet classes. Maintaining one's knowledge base in electronic notebooks is an important step for learners to use modern media effectively. Teachers can use OneNote to structure their lessons and save a lot of time in classroom management.