GIS and Maps

Information, materials, data and software for Johns Hopkins GIS and Map users.

Need Help?

GIS & Data Services
Milton S. Eisenhower Library



Bonni Wittstadt
GIS Specialist, Geospatial Services Librarian
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Keith Kaneda
GIS IT Specialist
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Jim Gillispie
GIS Librarian and Curator of Maps
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Ask a Librarian


Call us: 410-516-8335
Text us: 410-692-8874
Email us:

Contact Regional Campus Librarians

Puerto Rico Hurricane Relief Map-A-Thon Continued Efforts

Guide to Getting Started 

New to OpenStreetMap? Sign up for a free account at 

Once signed in, go to the drop-down menu next to edit and select "Edit with iD (in-browser editor). Select start the walkthrough.  TIP:  Zoom in on the map to make editing possible.


Refer to for video tutorials to help you get started mapping 

To start contributing to the Humanitarian OpenStreetMap (HOT) response to recent hurricanes and other natural disasters, go to the wiki page Scroll down to the table of tasks. You will be able to job status for the different tasks. Click on the Job number; the description will indicate if it is appropriate for beginners 

Click the instructions and get started!  


What is GIS?   Watch a short 2 minute clip

What is ArcGIS? 

ArcGIS is a powerful desktop mapping software that enables users to analyze geospatial data and create their own custom designed maps.  A popular use of ArcGIS is to map the wide variety of demographic information available from the decennial census.  Users can also supply their own data or use the many datasets available from the library and on via this guide - see Popular Data Sources tab.

Services We Offer

  • Software:  Johns Hopkins University students, faculty and staff are eligible to load a copy of the ArcGIS software for  use in teaching, research or course work.  See Software Access tab above for more information.
  • Training: GIS staff members offer beginning and intermediate training along with tailored workshops to fit your needs.  Customized class lectures can also be developed for faculty who use GIS in their teaching.  See the ArcGIS Training tab or contact us at our group e-mail