With Harry Potter and the Deathly Hallows Part 2 set to be released in theaters next Thursday, Scholastic is expecting a bump in sales for the hugely popular series. In the U.S., the seven Potter books have 150 million copies in print with the first book, Harry Potter and The Sorcerer’s Stone, the leader at 30 million copies.

The U.S. printings for the other titles in the series are: Chamber of Secrets, 26 million; Prisoner of Azkaban, 21 million; Goblet of Fire, 20 million; Order of the Phoenix, 18 million; Half-Blood Prince, 18 million; and Deathly Hallows, 17 million.

Worldwide, the Potter titles have sold 450 million copies in 68 languages.