With the building a Second Brian boom, a lot of people have started opening Obsidian for the first time recently. If that is you, welcome. The app is free for personal use, but it has a learning curve that is steeper than most note-taking tools, and the documentation assumes a level of familiarity that can make the first few hours genuinely bewildering. This guide covers the foundations: what Obsidian is, why people use it, and the core concepts you need to understand before