The Cambridge Companions series offers specially-commissioned collections of essays which are intended to serve as reference works for an inter-disciplinary audience of students and non-specialists. Addressing topics and figures ranging from Plato through Kant to Habermas, and philosophical movements such as the Scottish Enlightenment and German Idealism, this online collection contains over 1100 downloadable essays taken from the Cambridge Companions to Philosophy, Religion and Culture (more than 100 volumes).

Each volume also includes a substantial bibliography and other elements such as glossaries and timelines.

2 new Companions have been added as part of the September 2009 update. For more information, please see our News page.