Pay a visit to State Library of Pennsylvania to delve into the wonderful collection of books, journals and other resources. It's a wellspring of information and ideas.
You'll be spoiled for sightseeing choice in Downtown Harrisburg. State Library of Pennsylvania is a great place to begin here, but there are lots of other worthy places to appreciate. Pennsylvania State Capitol, Pennsylvania Farm Show Complex, and National Civil War Museum are near the collection of books and and will cap off your day nicely.