What is curious in Mr. James Klagge’s book Wittgenstein in Exile is that he explores very thoroughly the notion of exile as the master idea in the life of Ludwig Wittgenstein, but he leaves utterly and inexplicably unexplored the fact that Mr. Wittgenstein lived in the existential, internal exile of the closet. That Wittgenstein was ‘homosexual’ and I use that term in quotation marks as gay is a product of late 20th Century thinking, as an indicative not pejorative descriptor. Mr. Ray Monk’s revelatory biography makes completely clear Wittgenstein’s sexual orientation and documents his emotional perversity that could be traced back to the traps of the closet. As Philipp Blom makes clear in his book The Vertigo Years Europe, 1900-1914 pages 176 through 179 homophobia was rampant throughout Europe, at the turn of the century. Wittgenstein was born in Austro-Hungarian empire in 1889, the Oscar Wilde trial commenced in 1895 , Mr. Blom’s history tells the stories of Archduke Ludwig Victor, Fritz Krupp, Eulenburg, General Dietrich Hülsen-Haeseler, Alfred Redl and Roger Casement. The environment for ‘uranists’ i.e. homosexuals was punitive in the extreme, so the closet was an act of self-preservation, but a deforming act nonetheless. What I can say with a feeling of confidence is that Mr. Klagge may be an accomplished writer on philosophical subjects but he proves in Wittgenstein in Exile that he has an absolute ignorance of the existential position of a particular closeted homosexual , Ludwig Wittgenstein. Mr. Klagge’s book is indeed a well written, informative and rewarding reading experience and as far as it goes a highly credible, careful account of the life and thought of Wittgenstein , but it is limited, proscribed by Mr. Klagge’s ignorance, cultivated or actual.