Do you want to help the NYPL build the geospatial library of the future? This workshop orients you with tools (available at maps.nypl.org) enabling librarians and the public to add valuable geographic context to old maps. The workshop focuses on the website’s core activity: georectification, or “warping” maps. This means overlaying digital images of historic maps onto a contemporary digital map (similar to Google Maps), transforming them into tiles of a virtual atlas. This program will be held in the Stephen A. Schwarzman Building, in South Court Classroom A.