Few authors are better known than Dr. Seuss, yet, to this day, his Secret Art and his fantastical Hat Collection are virtually unknown to the general public. Throughout his lifetime, Theodor Seuss Geisel created paintings and collected hats which he secreted away in a hidden closet at the Seuss Estate. In honor of the 75th anniversary of Dr. Seuss's second book, The 500 Hats of Bartholomew Cubbins, a special Hats Off to Dr. Seuss! exhibition has been mounted that combines these two secret collections. Audrey S. Geisel, the widow of Dr. Seuss, has generously opened up the estate's legendary 'hat closet' to allow the public a first-ever peek at Dr. Seuss's hat collection.