I hope you've been listening to Grayson Perry's current series of BBC Reith Lectures - his often whimsical or humorous tone belies the fact they're extremely informed and full of provocative questions. (Much the same could perhaps be said about the usual media coverage of his bright and zany cross-dressing, which often distracts them from the artwork he creates.)
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A recent article in The Independent sums the lectures up pretty well - 'refreshing' and 'accessible' as he explores the big questions so-often sidestepped in contemporary art: issues of taste, quality, and concept.
There's some good stuff on the British Museum site regarding Perry's recent exhibition there last year.