I am currently rereading The Lies of Locke Lamora, in preparation for the newest book of the Gentleman Bastard sequence by Scott Lynch.
The Lies of Locke Lamora is an intelligently crafted fantasy novel that is endlessly amusing and surprising. It follows the adventures of a group of con artists known as the Gentlemen Bastards. They live in a city called Camorr, heavily based on late medieval Venice. The book is divided into two interspersed stories: in the present time, the Gentlemen Bastards must contend with the Grey King, a powerful figure terrorizing Camorr's criminal community. Every other chapter, however, delves into the history and mythology of Camorr, the Gentlemen Bastards, and especially the protagonist Locke Lamora.