Sales Jumped After Chelsea Clinton Mentioned These Books 'Chugga-Chugga Choo-Choo' is now a hot seller By Michael Harthorne, Newser Staff Posted Jul 30, 2016 2:48 PM CDT 121 comments Comments Chelsea Clinton gave a massive sales boost to three books during her Democratic National Convention speech on Thursday. (AP Photo/J. Scott Applewhite) (Newser) – If Chelsea Clinton had named just a few more books during her speech Thursday at the Democratic National Convention, who knows, she may just have saved the entire publishing industry. Quartz reports that all three books Clinton mentioned during the speech shot up Amazon's best-seller list. Goodnight Moon, which Clinton said her mom used to read to her as a child, went from 59th to 46th. A Wrinkle in Time, which Clinton said she was obsessed with when she was young, rose even more, going from 431st to 74th. But the most meteoric rise was for Chugga-Chugga Choo-Choo, a children's book Clinton says her mom reads to her granddaughter. That book jumped all the way from 3,656th place on Amazon to 210th. It was a nearly 1,500% jump in popularity. The book's author, Kevin Lewis, who says he wrote the book in part to help create moments for grandparents and grandchildren to share, posted about the Clinton bump on his Facebook page. "The fact that this particular grandmother is the first woman to receive a nomination from a major party is, frankly, humbling." Meanwhile, Slate points out all three books are now outselling Donald Trump's Art of the Deal, which sat at 356th on Amazon.