This document provides a list of HTML elements and their purposes. It includes elements for text formatting like <b> for bold, <i> for italic, and <u> for underline. Layout elements like <div> and <span> are presented for defining sections. Lists are created using <ol>, <ul>, and <li>. Forms use elements like <form>, <input>, and <select>. Tables are built with <table>, <tr>, <td>. The document acts as a reference for many basic HTML tags and their functions.