Jim Kay won the Kate Greenaway Medal in 2012 for his illustrations in A Monster Calls by Patrick Ness. Jim studied illustration at the University of Westminster and since graduating has worked in the archives of Tate Britain and the Royal Botanic Gardens at Kew. Jim has produced concept work for television and contributed to a group exhibition at the Victoria and Albert Museum in London. He now lives and works in Northamptonshire, England, with his wife.

J.K. Rowling is the author of the enduringly popular Harry Potter books. After the idea for Harry Potter came to her on a delayed train journey in 1990, she plotted out and started writing the series of seven books and the first was published as Harry Potter and the Philosopher's Stone in the UK in 1997. The series took another ten years to complete, concluding in 2007 with the publication of Harry Potter and the Deathly Hallows.

To accompany the series, J.K. Rowling wrote three short companion volumes for charity, Quidditch Through the Agesand Fantastic Beasts and Where to Find Them, in aid of Comic Relief and Lumos, and The Tales of Beedle the Bard, in aid of Lumos. She also collaborated on the writing of a stage play, Harry Potter and the Cursed Child, which was published as a script book.

Her other books for children include the fairy tale The Ickabog and The Christmas Pig, which were published in 2020 and 2021 respectively and have also been bestsellers. She is also the author of books for adults, including a bestselling crime fiction series.

J.K. Rowling has received many awards and honors for her writing. She also supports a number of causes through her charitable trust Volant and is the founder of the children's charity Lumos.

To find out more about J.K. Rowling visit jkrowlingstories.com.