Peter Ludlow, who also writes under the pseudonyms Urizenus Sklar and EJ Spode, is an American philosopher. He is noted for interdisciplinary work on the interface of linguistics and philosophy—in particular on the philosophical foundations of Noam Chomsky's theory of generative linguistics and on the foundations of the theory of meaning in linguistic semantics. He has worked on the application of analytic philosophy of language to topics in epistemology, metaphysics, and logic, among other areas.

The philosophy of mind
1992
ISBN 9781435625297
Crypto anarchy, cyberstates, and pirate utopias
2001
ISBN 9780262621519
Readings in the Philosophy of Language
1997
ISBN 9780262621144
The Second Life Herald
2007
ISBN 9780262122948
The making of the European monetary system
1982
ISBN 9780408107280
The Annual Review of European Community Affairs, 1990 (The Centre for European Policy Studies)
1990
ISBN 9780080409689
The Philosophy of Mind: Classical Problems/ Contemporary Issues
1992
ISBN 9780262524513
European Union After Maastricht
1994
ISBN 9781857530674
The fourth enlargement
1994
ISBN 9789290791706
The churches in the European Union
1994
ISBN 9781873838143
High noon on the electronic frontier
1996
ISBN 9780262621038
Semantics, Tense, and Time
1999
ISBN 9780262519762
The making of the new Europe
2004
ISBN 9789077110041
The Leadership In An Enlarged European Union
2005
ISBN 9789077110096
Philosophy of Generative Linguistics
2011
ISBN 9780199674473
The philosophy of generative linguistics
2011
ISBN 9780199258536
Living Words
2014
ISBN 9780198801382
The Canny Scot
2015
ISBN 9780773544970
Interperspectival Content
2019
ISBN 9780192897589
Preparing for membership
1996
ISBN 9789290792055
The Philosophy of David Cronenberg
2012
ISBN 9780813136042