Full title   Philosophical Investigations

Author   Ludwig Wittgenstein

Philosophical movement   Analytic philosophy (though we should note that Wittgenstein rejects the philosophical importance of logic, which is one of the key aspects of analytic philosophy); Ordinary language philosophy

Language   German

Time and place written   1940's, mostly in Cambridge, England

Date of first publication   1953

Publisher   Prentice Hall (USA); Basil Blackwell (UK)

Speaker   A complex literary style alternates between Wittgenstein's own voice and that of his "interlocutor" (see "Themes, Arguments, and Ideas")

Philosophical influences on the work   Primarily Frege, Russell, and Wittgenstein's own early work, though the influence is mostly negative

Philosophical influences of the work   Ordinary language philosophy

Popular pages: Philosophical Investigations