As the reports, the racy trilogy is expected to hit the 20 million sales mark in the US this week, making it 鈥渙ne of the fastest-selling book series in recent memory.鈥 As of July 2, the trilogy sold 19.4 million copies in both print and e-book form since its publication in March. It鈥檚 expected to hit 20 million this month; by comparison, 鈥The Girl With the Dragon Tattoo鈥 took more than three years to hit 20 million in sales in the US.
