You can enjoy the artistry of thousands of illustrators past and present in this collection, which runs the gamut of style, medium and genre. Works illustrated by those listed in Bertha E. Mahony's Illustrators of Children's Books, 1744-1945 and subsequent volumes form the foundation of the gathering. In addition, we attempt to collect all books done by illustrators working in Pennsylvania. Other illustrators are included based on their importance to the world of children's book illustration. In all, the collection contains more than 30,000 books.