HTML, or HyperText Markup Language, is the language behind most web pages. Its popularity is due in part to the fact that it’s easy to learn, even for people who have never studied any other computer languages.

Once you know the basic rules of HTML and a few HTML tags, you can begin developing a web page—formatting text, adding images and links, and more. And even if you’re using excellent web editors like Dreamweaver, this knowledge is useful for understanding how to get the most out of your authoring software, and for troubleshooting common problems.