Leviathan (1651)—full title Leviathan or The Matter, Forme and Power of a Commonwealth Ecclesiasticall and Civil—is a book written by English philosopher Thomas Hobbes. The book offers a criticisms regarding the structure of society and legitimate government. It is considered one of the earliest and most influential examples of social contract theory.

Leviathan (1651)—full title Leviathan or The Matter, Forme and Power of a Commonwealth Ecclesiasticall and Civil—is a book written by English philosopher Thomas Hobbes. The book offers a criticisms regarding the structure of society and legitimate government. It is considered one of the earliest and most influential examples of social contract theory.