Join us for a fun-filled program of books, poems and songs by the Mad Hatters of Chicago. Hear some all-time favorite books performed in English and Spanish using hats and props. Join the fun with your whole family! The Mad Hatters are a program of the Junior League of Chicago. For kids 3 to 9 and their families. Únete a nosotros para libros, poemas y canciones de los Mad Hatters de Chicago.