Most credible open-access source of philosophical information. It now includes more than 1400 authoritative and vetted entries about all manner of philosophical topics.

The purpose of the Encyclopedia of Philosophy is to provide detailed, scholarly, peer-reviewed information on key topics and philosophers in all areas of academic philosophy. The Encyclopedia’s articles are written with the intention that most of the article can be understood by advanced undergraduates majoring in philosophy and by other scholars who are not working in the field covered by that article. The Encyclopedia of Philosophy app articles are written by experts but not for experts in analogy to the way the Scientific American magazine is written by scientific experts but not primarily for scientific experts.

A critical feature of the the app is its status as a freely accessible and not-for-profit resource, which the General Editors, present and future, will seek to perpetuate. As such, the Encyclopedia of Philosophy will not be used to make a profit in any manner, such as by re-publishing articles or by charging for access to its articles. No for-profit organization will have any financial stake in the IEP, nor can a for-profit organization advertise within the IEP.