My wife is a pretty voracious reader and has 3 active Kindles that I believe are mostly segregated out by genre/collection. I wouldn't be surprised if this is a

My wife is a pretty voracious reader and has 3 active Kindles that I believe are mostly segregated out by genre/collection. I wouldn't be surprised if this is as much for convenience as anything else, I don't use it much but Amazon's library management and navigation on the Kindles has never impressed me. She's also one of those folks who sideloads with Calibre as well as purchasing through Amazon.