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LCR is part of the overall University of Calgary re-entry strategy. We are working to restore some essential services as quickly as possible in a way that is safe for you - our users- and our staff and in the context of the overall campus re-entry plan. We will continue to offer our suite of online services and will also be expanding access to online books and resources. Virtual service hours today: 9:00 AM to 6:00 PM. 10:00 AM to 4:00 PM. Physical locations remain closed. You can return your books to the exterior book drop on the East side of the TFDL. More information on the Covid 19 page.

Recreational Mathematics

Guide to archival and published sources held at the University of Calgary Library Special Collections on the subject of recreational mathematics including rare books, kaleidoscopes, games, puzzles, playing cards, magazines and journals.

General Information



Welcome to the Recreational Mathematics Resource Guide! These sources are available for YOU to use for research. 

The collection features work by Leon Bankoff, Martin Gardner, Eugene Strens and more! 

This collection was donated to the University of Calgary Library (Special Collections) by the family of Dutch mathematician Eugene Strens, after whom the collection has been named.  Since its initial recipt the Strens collection has grown to include several thousand books and archival materials.

In this guide, you will find information on the following topics:

  • Puzzles & riddles
  • Games
  • Kaleidoscopes
  • Books & literature
  • Playing cards
  • Personal papers of recreational mathematicians

This guide can be used in the following ways:

  • Learn more about our recreational mathematics collection
  • Learn how to access the various components of the collection


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