Capitalization is one of the most basic and important elements of writing. Capitalization draws the reader’s attention to names, titles, and more. Capitalization also marks the start of new sentences and new paragraphs, provides signals to the reader, and helps to create a structure and a hierarchy in written language. For these reasons, capitalization is essential for readers and writers. The rules may seem complex, but most uses of capital words fall under just a few big-picture categories. Once you understand these categories, your writing will be clearer and easier to follow.