anselm kiefer's "book with wings." a ridiculously cool sculpture at the museum of modern art of fort worth. the book of knowledge has wings 13 feet wide which appear poised for flight. but being made of lead, with wings of tin, this knowledge can never take flight. kiefer is a german artist born in 1945, and this piece seems to explore his struggle with the horror over his country's nazi heritage and the jewish holocaust.