When you click a GitHub link, you land in a repository. The URL follows the same pattern every time: github.com/username/project-name. Everything about that project lives here: the code, the full history of every change, the bug reports, the debates, the documentation. A project room where the work happens in public.
You don't need to read the code. You're here to get oriented.
The layout
A repository page has a few distinct areas. Once you know what each one is for, the whole page becomes readable.
The file tree sits in the center of the page. It's a list of folders and files. You don't need to open them. The names alone tell you a lot. A folder called docs usually holds documentation. A folder called tests means someone is writing automated checks. A file called LICENSE tells you the legal terms. requirements.txt or package.json are shopping lists of other software this project depends on. If you see a file called README.md, that's the front door. More on that in the next step.
Directly above the file list, running across the top of it, is the last-commit line: a short message describing the most recent change, the contributor who made it, and how long ago it happened. That single line tells you whether the project is alive before you've read anything else.
The About panel sits in the right column. This is where you find the short description, any topic tags the maintainer added, the languages the code is written in, and a link to Releases if the project has them. When you want to judge what a project is and whether it's worth trusting, start here.
The top bar shows the project name and some numbers: stars, forks, and watchers. Stars are roughly equivalent to bookmarks. A lot of stars means a lot of people found this useful. Forks are copies that someone made to modify independently. Neither number tells you the project is good, but very low numbers on an old project is a signal worth noting.
The tabs across the top, Code, Issues, Pull requests, Actions, and a few others, are where the real story lives. Code is what you're looking at now. You'll learn to read Issues and Pull requests in later steps. For now, just know they're there.
What to look at first
Start with the last-commit line above the file tree. A message from this week means someone is still working. A message from four years ago means the project may have been left to drift. Then check the commit count in the same area: 2,000 commits signals a project with history behind it. One commit signals a draft someone uploaded and forgot.
Below the file tree, there's usually a rendered README. Scroll down to it. This is what the maintainers wanted you to see first. Its quality tells you something about the project's culture.
The number of contributors matters too. One contributor means the project depends entirely on one person's continued interest. Twenty contributors means the project has survived people coming and going.
The mental model
When you read a repository well, you're not reading the code. You're reading the team.