The document discusses HTML tags and their usage in creating web pages. It introduces common tags like <html>, <head>, <title>, <body> that define the overall structure of an HTML document. Tags <p> and <pre> are described as ways to separate text into paragraphs while preserving or ignoring formatting. The <p> tag creates a new paragraph, while <pre> displays preformatted text retaining spaces and breaks. Examples of using these tags are also provided.