Commercial translation is the translation of a source text into a written target text, generally by a freelance professional translator, for a commercial purpose and for remuneration, often with short deadlines. The translation industry operates largely using an agency model: translation agencies work with clients to determine translation needs, then contract with freelance translators who produce the translation using a “translate-edit-proof” model where one translator produces a translation, a second translator in the same language pair (the “editor”) checks for accuracy and revises the translation, and a proofreader checks the target text for correctness. Translation agencies also provide other services to clients, such as desktop publishing. Some professional translators also provide the entire translation service to direct clients.