Movies, television series, plays, scientific species names, paintings, and works of art are also commonly italicized. Chapter titles, television episode titles, chapter titles, brief poems, and short tales are examples of shorter works that use quote marks. Full-length novels are normally set in all-capitals style, but some authors may choose to have certain characters' names appear in italics (e.g. Shakespeare used this convention). Italicization is used for emphasis or to distinguish words that are otherwise identical in size and position on the page. It's often unnecessary, as readers recognize easily which words are important enough to be capitalized. The decision to capitalize or not to capitalize a word depends on many factors: the author's intention, the type of work being produced, the design of the book or article, etc. Generally, if a word is important enough to be capitalized, then it is also important enough to be italicized. However, there are exceptions; for example, "Shakespeare" is a name while "Shakespearean" is a term. Names of people, places, and things cannot be emphasized by capitalizing only their first letter; for example, "George Washington" and "Washington, D.C." are both proper names that should be typed in full, while "Mr. Washington" and "Washington DC" are abbreviations that should be treated as terms.