Reference

Encyclopedia of Philosophy (10 Volume Set)
Philosophers: Their Lives and Works (2019)
New Dictionary of the History of Ideas (6 Volume Set)
The Oxford Companion to Philosophy (2005)
The World's Great Philosophers (2003)
The Shorter Routledge Encyclopedia of Philosophy (2005)
The Routledge Dictionary of Philosophy (2009)
The Philosophy Book (2011)
The Handy Philosophy Answer Book (2010)
The Cambridge Dictionary of Philosophy (2015)
The Oxford Dictionary of Philosophy (2016)
The Blackwell Companion to Philosophy (2003)
How Philosophy Works: The Concepts Visually Explained (2019)
Central Issues of Philosophy (2009)
A to Z of Philosophy (2009)