Inferno by Dan Brown is a book worth reading. Dan Brown's inspiration for this book is Dante Alighieri's Inferno as what the book is called. Inferno is the first out of three parts in the Divine Comedy.
Dan Brown Angels and Demons - The First book of Robert Langdon Series. But you need not read it first.
Digital Fortress by Dan Brown (Favorite Dan Brown book)
mapsontheweb: Dante’s Inferno: a helpful diagram to eternal damnation
tome code davinci tome 2 = ange et demon