http://irrationalgames.com/new-featured/bioshock-infinite-mind-in-revolt-prequel-announced/
“Since we first announced BioShock Infinite, our fans have asked for more information about Columbia and the complex cast of characters that inhabit the floating city,” said Fielder. “After reading the e-book, players will have a better understanding of BioShock Infinite’s world, the struggle between its factions, and the motivations of key characters, like rebel leader Daisy Fitzroy, without spoiling the mysteries of BioShock Infinite.”