When you search for a book in the PSU Library catalog, look for this green link, Available at PSU Library Shelves, then select it. Write down the location and the call number. Click on View Map to find the call number and floor.
Search with title, author, or keywords in the search box on the PSU Library homepage.
Under the limits, under Availability, select PSU Online Resources, and under Resource Type select eBooks.
For the eBook of you select, click Online Access, then the link provided after "available online at.."