Welcome to Go from Zero

You've never written a line of code, or maybe you've dabbled but nothing stuck. Either way, this course starts from nothing and builds up, one concept at a time. By the end, you'll understand how programs work and you'll build a real project from scratch.

The language is Go. It's simple, fast, and doesn't try to be clever. There's one way to write a loop, one way to format code, and the compiler tells you exactly what's wrong. That makes it a great first language.

What You'll Learn

What Is Programming: what code is, how Go turns it into a program, your first "Hello, World!"
Values and Variables: numbers, text, booleans, storing data, printing output
Making Decisions: comparisons, if/else, switch, reading user input
Repeating Things: loops, counting, patterns, breaking out
Functions: reusable blocks of code, parameters, return values
Slices: ordered collections, adding items, looping through lists
Maps: key-value pairs, lookups, checking if something exists
Structs: defining your own types, grouping related data
Errors: what can go wrong, handling it, reading and writing files
Packages: organizing code into folders, using Go's standard library
Putting It All Together: build a complete Contact Book application

Why Go?

Simple: small language, few keywords, one way to do things
Fast: compiles to a single binary in seconds
Strict but helpful: the compiler catches mistakes before you run anything
Great tooling: formatting, testing, and building are all built in

Prerequisites

None. If you can type and follow instructions, you're ready.

Course Structure

Eleven lessons. Each one teaches a programming concept with hands-on examples you can run immediately. The final lesson brings everything together into a complete Contact Book application, a real program you can use and extend.

You don't need to install anything to get started. Most code examples in this course can be copied and run directly in the Go Playground, a free online editor from the Go team. Just paste the code and hit Run.