8.3 million: Copies reported sold by Scholastic in first 24 hours

5.2 million: Copies sold through outlets tracked by Nielsen BookScan on July 21 and 22

2.2 million: Number of worldwide preorders at Amazon

1.4 million: Number of Amazon preorders in the U.S.

1.8 million: Copies sold by Barnes & Noble on July 21 and 22

1.2 million: Copies sold by Borders worldwide in first 24 hours