My paper Five Private Language Arguments is available here . Comments welcome. It provides a fairly clear explanation of five different private language arguments that philosophers have supposed Wittgenstein offers in PI 258. I intended it to function as a good introduction to the whole private language argument topic. If I ever get round to writing a book on the Philosophical Investigations , it will form part of that book. Incidentally, the clearest intro to the Investigations is still Marie's McGinn's (though I don't agree with McGinn on e.g. the private language argument - see my paper). I have just ordered Block's How to Read Wittgenstein - will let you know what I think.
Stephen Law is a philosopher and author. Currently Director of Philosophy and Cert HE at Oxford University Department of Continuing Education. Stephen has also published many popular books including The Philosophy Gym, The Complete Philosophy Files, and Believing Bullshit. For school talks/ media: stephenlaw4schools.blogspot.co.uk Email: think-AT-royalinstitutephilosophy.org