New York: Arthur A. Levine / Scholastic Press, 1998-2007. First American editions of each book in the Harry Potter series. Octavo, original half cloth, seven volumes, illustrated by Mary Grandpre. Each are near fine to fine in near fine to fine dust jackets. An exceptional set. Since the release of the first novel in the Harry Potter series, Harry Potter and the Philosopher’s Stone, on June 26th 1997, J.K. Rowling's Harry Potter novels for young adults have found immense popularity, critical acclaim and commercial success worldwide. The series of seven books have sold more than 500 million copies worldwide, making them the best-selling book series in history, and have been translated into seventy-three languages. The last four books consecutively set records as the fastest-selling books in history, with the final installment selling roughly eleven million copies in the United States within twenty-four hours of its release. The Harry Potter series has been recognized by a host…