It varies from edition to edition and country to country. The first editions of The Hobbit were illustrated by Tolkien himself. Much of his art work was used throughout future editions and for the covers of some of the paperback editions.
The illustrator for the Harry Potter series by J.K. Rowling is Mary GrandPré. She created the iconic covers and illustrations for the series.
Mary Grandpre
No one she illustrates her own work.
reading books
no she was a singer
Jane Austen, I think
JK Rowling's books were published by Bloomsbury in the UK, Scholastic in the US and Raincoast in Canada.
27th July 1993 ;-) she is jk rowlings oldest child
J.K. Rowling has blue eyes.
yes she did a little bit
Joann Kathleen Rowling
Albus Dumbledore
J.K. Rowling has not publicly disclosed her favorite place on Earth.
I'm pretty sure it was Harry Potter and the Deathly Hallows
J.K. Rowling is known for having blonde hair.