Andrew Loomis (1892-1959) was an American illustrator, author, and art instructor known for his work in advertising and for his instructive art books. He was highly regarded during the mid-20th century for his clear and concise teaching style and his mastery of drawing the human figure. Loomis's instructional books, notably "Figure Drawing for All It's Worth," "Creative Illustration," and "Drawing the Head and Hands," have been widely influential in the fields of fine art and commercial illustration, teaching generations of artists the fundamentals of proportion, perspective, and figure drawing. His legacy as an educator and illustrator continues to be celebrated and referenced by contemporary artists and students.