I want to make a program that basically displays a menu, and that menu leads to smaller menus, until it gets to pages of info. I know that a website would work better, however, I want this to be able to work offline. I don't know what kind of program to start with, so if someone could give me an idea of a few, that would be great!
You could use something like Zim which is desktop wiki application. It's written in Python, so it can be used on most computers with the relevant dependencies installed, and has support for Windows, Ubuntu and others ready.
WikidPad Is long living open sourced project that runs on Windows/Linux/Mac OS
You can create hierarchy tree like menus