For an answer to the question, "What is AutoHotkey?" see AutoHotkey.
Well, if your daily driver laptop or desktop computer is a Mac or runs some variant of Linux, this is really easy to answer—you shouldn't! AutoHotkey is a Windows-only program.
But if your primary computer is a Windows machine, you should learn AutoHotkey because it will save you time by letting you automate keystrokes and mouse clicks. Depending on what you most frequently use your computer for, this can become extremely handy.
AutoHotkey can do a lot of things. I will walk through only four of them, because they are the functions I find most handy and use most often:
I'll also walk through how I personally use AutoHotkey in my Personal Knowledge Management Workflow.
Here's an overview of this introduction's six parts: