So this guy is basically my favorite artist ever.
Basically Rackham is one of the most famous fantasy illustrators PRETTY MUCH EVER he did all kinds of fancy watercolors and probably made a shit-load of money off've it, which is nice because he was born into a family of twelve (in 1867) and you do not grow up rich in a family like that, you are lucky if you are not dirt-poor in a family like that.
He initially worked for a weekly magazine, but quickly turned his attention to illustrating for books. He did not always possess the 'Rackham style'; that was produced first for the public in his 1905 illustrating of Rip Van Winkle. Other fairy-tales illustrated by Rackham include: Aesop's Fables, Mother Goose, A Christmas Carol, The Romance of King Arthur, English Fairy Tales, Cinderella, The Sleeping Beauty, Hansel and Gretel, Irish Fairy Tales, A Fairy Book, The Allies Fairy Book, Comus, A Wonder Book, The Tempest, The Vicar of Wakefield, The Chimes, The Night Before Christmas, The Compleat Angler, The Arthur Rackham Fairy Book, Tales of Mystery and Imagination, The King of the Golden River, Goblin Market, The Pied Piper, Peer Gynt, The Wind in the Willows and more.