The title of a book, or any other published text or work of art, is a name for the work which is usually chosen by the author. A title can be used to identify the work, to put it in context, to convey a minimal summary of its contents, and to pique the reader's curiosity.
Some works supplement the title with a subtitle. Texts without separate titles may be referred to by their incipit (first word), especially those produced before the practice of titling became popular. During development, a work may be referred to by a temporary working title. A piece of legislation may have both a short title and a long title. In library cataloging, a uniform title is assigned to a work whose title is ambiguous.