Philosophical Investigations

Incorporating significant editorial changes from earlier editions, the fourth edition of Ludwig Wittgenstein's Philosophical Investigations is the definitive en face German-English version of the most important work of 20th-century philosophyThe extensively revised English translation incorporates many hundreds of changes to Anscombe's original translation Footnoted remarks in the earlier editions have now been relocated in the text What was previously referred to as 'Part 2' is now republished as Philosophy of Psychology - A Fragment, and all the remarks in it are numbered for ease of reference New detailed editorial endnotes explain decisions of translators and identify references and allusions in Wittgenstein's original text Now features new essays on the history of the Philosophical Investigations, and the problems of translating Wittgenstein's text

Peter Hacker is the author of the four-volume Analytical Commentary on the Philosophical Investigations (Blackwell, 1980-96) the first two volumes co-authored with G. P. Baker (Second Editions, 2003, 2009) and of Wittgenstein’s Place in Twentieth-century Analytic Philosophy (Blackwell, 1996). He has also written extensively on philosophy of mind, including Philosophical Foundations of Neuroscience (Blackwell, 2003) and History of Cognitive Neuroscience (Wiley-Blackwell, 2008), co-authored with M. R. Bennett, and Human Nature: The Categorial Framework (Blackwell, 2007), the first volume of a trilogy on human nature.

Joachim Schulte edited the authoritative critical-genetic edition of Wittgenstein’s Philosophische Untersuchungen (2001). He is author of  Wittgenstein: An Introduction (1989), Chor und Gesetz: Wittgenstein im Kontext (1990), Experience and Expression: Wittgenstein’s Philosophy of Psychology (1993), and of many dozens of philosophical papers.