The contents of this single-volume encyclopedia are numerous and varied. Topics include architecture, art, biography, business, geography, government, history, industry, lore, medicine, newspapers, science, sociology, towns, etc. Biographical sketches of many of Pennsylvania's sons and daughters make up half the volume; dates span the 17th to 19th centuries. Appendices include a listing of Pennsylvania townships and a listing of Pennsylvanians in Who's Who in America.