[Shenandoah]

I'm not sure what the longest book I've ever read was... I'd argue Tolkien's Lord of the Rings or G.R. Martin's A Game of Thrones (and each of the sequels in the Song of Ice and Fire series). I enjoyed the varying perspectives of each of the characters in Martin's books, so... *shrugs* I don't mind long books so long as they're well written and entertaining.