This document provides a tutorial for understanding and using HTML, CSS, and JavaScript to create websites. It is intended for high school students and presented as a guide created by the author, Linus Remington, for his classmate Jake Jordan. The guide covers basic HTML tags such as <DOCTYPE>, <html>, <head>, <title>, and <body> as well as other common tags. It also provides introductions to CSS and JavaScript and how they can be used to further enhance websites. The overall document serves as a beginner's manual for learning web development.