Mrs. Wronker, who illustrated numerous books for children and adults, said she found the process of drawing “as mysterious as life itself.” A devout typophile — she was a founding member of the Society of Scribes in New York — whose fascination with the shape and form of letters found creative expression on hundreds of book jackets between the 1940s and ’60s. Richard Sandomir’s Obit of this accomplished book designer, illustrator and calligrapher for the New York Times