Mary GrandPré has illustrated more than twenty beautiful books, including The Noisy Paint Box by Barb Rosenstock, which received a Caldecott Honor; Cleonardo, the Little Inventor, of which she is also the author; and the original American editions of all seven Harry Potter novels. Her work has also appeared in the New Yorker, the Atlantic Monthly, and the Wall Street Journal, and her paintings and pastels have been shown in galleries across the United States. Ms. GrandPré lives in Sarasota, Florida, with her family.

J.K. ROWLING is the author of the seven Harry Potter books, which were first published between 1997 and 2007. The enduringly popular adventures of Harry, Ron, and Hermione have sold over 500 million copies, been translated into over 80 languages, and made into eight blockbuster films. Alongside the Harry Potter series, she also wrote three short companion volumes — Quidditch Through the Ages, Fantastic Beasts and Where to Find Them, and The Tales of Beedle the Bard — which were published in aid of Comic Relief and Lumos. In 2016, J.K. Rowling resumed Harry’s story in a stage play, Harry Potter and the Cursed Child, which she wrote with playwright Jack Thorne and director John Tiffany, and which is now in theaters across the world. In the same year, she wrote the screenplay for the film Fantastic Beasts and Where to Find Them, the first in a series featuring magizoologist Newt Scamander. She is also the author of a stand-alone novel for adults, The Casual Vacancy, and, under the pseudonym Robert Galbraith, writes the Strike detective series. In 2020, J.K. Rowling returned to publishing for younger children with the fairy tale The Ickabog, the royalties from which she is donating to groups affected by the Covid-19 pandemic. She lives in Scotland with her family, and is at her happiest alone in a room, making things up.