Gustaf Tenggren, born in Sweden, and emigrated to the US, was a prolific illustrator of children's books. He had a unique, vivid, caricature style. Tenggren got his big break in 1935, when he was hired as art director for Walt Disney's Snow White and the Seven Dwarves. He also worked on Pinocchio, Fantasia and Bambi.
He is one of the most popular of Golden Books illustrators and did the Poky Little Puppy.
Here are some images I particularly like. These two are from a Golden Press Folk Songs book.
Here are two from The Lion's Paw:
And here are some Golden Book classics, Little Red Riding Hood and Jack in the Beanstalk. I love Tenggren's Jack!
I always enjoy finding a Tenggren book when I'm out hunting.