Self-publishing is the publication of any book or other media by the author of the work, without the involvement of an established third-party publisher. A self-published physical book is said to be privately printed. The author is responsible for and in control of the entire process, including, in the case of a book, the design of the cover and interior, formats, price, distribution, marketing and public relations. The authors can do it all themselves or outsource all or part of the process to companies that offer these services. Self-publishing is not limited to physical books. Ebooks, pamphlets, sales brochures, websites, and other materials are commonly self-published.