Welcome to Thonky's QR Code tutorial. QR codes are a special type of barcode created by Denso Wave Incorporated. QR codes encode text and numbers using a pattern of pixels that is designed to be easy for optical scanners to read.
The tutorial that you are reading is designed to teach programmers how to encode information in a QR code. As such, it is recommended that you only read this tutorial if you already have at least a basic grasp of programming concepts.
Please check out Thonky's QR Code Generator if you just want to create a QR code.