The Firm of Nucingen
Honoré de Balzac
This book is available for download with iBooks on your Mac or iOS device, and with iTunes on your computer. Books can be read with iBooks on your Mac or iOS device.
The entire story is told as a conversation between four "cormorants" (the metaphor is Balzac's) who sit and drink in a private room while their talk is overheard through the paper-thin partition and reported to us by Balzac himself (or a fictional representative of the writer). The book is told in the style of an oral narrator who never seems to quite get around to the point of the story - and indeed the various digressions are what enable such a wide range of characters to feature.