Gratis versus libre is the distinction between two meanings of the English word "free"; namely, "for zero price" (gratis) and "with few or no restrictions" (libre). The ambiguity of "free" can cause issues where the distinction is important, as it often is in dealing with laws concerning the use of information, such as copyright and patents. Gratis appears in many English dictionaries, including the Oxford English Dictionary. However, libre does so less commonly, and no English adjective signifies "liberty" exclusively and as distinct from "at no monetary cost".

Данное издание не является оригинальным. Книга печатается по технологии принт-он-деманд после получения заказа.