1 million: Number of copies of her book that Lena Dunham needs to sell in order to make her $3.7 million dollar deal worth it, according to the Hollywood Reporter. Dunham sold her book "Not That Kind of Girl: A Young Woman Tells You What She's Learned" to Random House. To put it in perspective, Tina Fey's "Bossypants" has sold 2 million copies, while Mindy Kaling's "Is Everyone Hanging Out Without Me? (And Other Concerns)" has sold 300,000.