In this training course, you will learn the basics of Obsidian: powerful knowledge management and note-taking tool. Obsidian is a free and open-source tool that allows you to create and manage your knowledge in a flexible and efficient way. The course starts with an introduction to Obsidian and its features. We then move on to creating and managing notes and documents in Obsidian. Also, it covers topics such as linking notes, creating and using plugins, and how to take notes in a proper way.