My local library's copy of Nat Tate, An American Artist 1928-1960 by William Boyd is still in pristine condition. The last time I checked I think it had been taken out four times, and it's glossy spine occupies an almost permanent position amongst the books on Modern Art.
Of course, when the book was launched, (readings by David Bowie, no less...) not one art critic actually came out and said 'Nat Tate? Never heard of him...'
I can imagine them all laughing with a measure of relief when the book was revealed to be a hoax.
The Emporer's new clothes, my friends...