Hilary Knight is an acclaimed illustrator of over 50 children's books and the author of nine books, He is best known for illustrating and co-creating the international classic, Eloise.

Knight, son of artist-writers Clayton Knight and Katharine Sturges, was born in Hempstead, Long Island and grew up in the town of Roslyn. When he was six the family moved to Manhattan where he has lived ever since. In the past twenty years he has maintained an apartment in the center of New York City which doubles as his studio and houses his collection of books, programs, and recordings of theatre and film music. His first published work appeared in Mademoiselle Magazine in 1952, followed by drawings in House and Garden, Good Housekeeping, and Gourmet magazines.

Besides books, Knight's work has included note and greeting cards, children's fashion advertisings, illustrations for Cricket magazine, record album covers and posters for the Broadway musicals Half A Sixpence, Hallelujah Baby!, No, No Nanette, Irene, and Gypsy.