Wikipedia:
Newell Convers Wyeth (October 22, 1882 – October 19, 1945), known as N. C. Wyeth, was an American artist and illustrator. He was the pupil of artistHoward Pyle and became one of America’s greatest illustrators.[1] During his lifetime, Wyeth created over 3,000 paintings and illustrated 112 books,[2] 25 of them for Scribner’s, the Scribner Classics, which is the work for which he is best known.[1] The first of these, Treasure Island, was one of his masterpieces and the proceeds paid for his studio. Wyeth was a realist painter just as the camera and photography began to compete with his craft.[3]Sometimes seen as melodramatic, his illustrations were designed to be understood quickly.[4] Wyeth, who was both a painter and an illustrator, understood the difference, and said in 1908, “Painting and illustration cannot be mixed—one cannot merge from one into the other.”[3]
His illustrations of King Arthur and the Knights of the Round Table are among my favorites.