Right, because reading _Godel Escher Bach_, _Shock of the New_, and _Drawing on the Right Side of the Brain_ (my current reading list) obviously doesn't exercise the imagination.
I said "only." And just for the record, I've read all of Hofstader's books, not just the popular/mainstream one.
EDIT: Ok, not all, just the ones in English. ;-)
And a further
EDIT: all three of those books are about "Art" more or less. I can't see how someone who read those books can't read fiction. So I'm guessing you missed "only."