The Da Vinci Code 80 million

The most recently published book in the top ten of the most widely read books in the world, The Da Vinci Code was a global phenomenon in the mid2000s. A mysterydetective novel written by Dan Brown, the book follows main characters Robert Langdon and Sophie Neveu as they investigate a murder at the Louvre and are embroiled in a deeper, sacrilegious called by some groups mystery regarding the Holy Grail and Mary Magdalene.