The document discusses various HTML text formatting tags including headers, paragraphs, line breaks, and other text styling elements like bold, italics, underline. It provides examples of how to properly structure and nest these tags to format text on a webpage. Key tags covered are <h1>-<h6> for headers, <p> for paragraphs, <br> for line breaks, <b>, <i>, <u> for bold, italics, underline, and <font> for changing font attributes.