This is a catalogue of 467 letters written to and from Abraham Ortelius. The letters were written in Latin, French, Dutch, Italian and Portuguese.

High resolution images of maps and atlases that were published by Abraham Ortelius are available on this site.

This site includes an index with digitized images of several editions of the Theatrvm Orbis Terrarvm.

Articles about Abraham Ortelius can be accessed on JSTOR. JSTOR is a collection of full-text, keyword searchable academic journals. The subscription resource JSTOR is available to researchers onsite at the Library of Congress. If you are unable to visit the Library, you may be able to access this resource through your local or university library.

Information about Abraham Ortelius or any specific topic on the history of cartography may be found on this site.

An image and description of a map of the Azorean Islands published by Abraham Ortelius in 1594 is available on this site.

This is an in-depth article about Abraham Ortelius and his contributions to cartography.

An image and description of a map of Portugal published by Abraham Ortelius in 1579 is available on this site.

The World Digital Library provides free access to important cultural documents. Maps that were published by Abraham Ortelius may be searched for by entering the keyword Ortelius.