Sales of 'Fifty Shades of Grey' trilogy copies have touched the 100 million mark, according to Vintage Books.
The erotic novels, authored by E.L.James, have also successfully spent 100 weeks on 'The New York Times' best-seller list, CBS news reported.
The 50-year-old British author thanked her fans on Twitter after reaching the milestone.
The sexually explicit novels have been translated into 51 languages, including Hebrew, Icelandic and Korean, and a film adaptation of the novel, with Jamie Dornan and Dakota Johnson in the lead, is slated to hit theatres in 2015.