Emeritus Professor Kevin Possin taught critical thinking in the Philosophy Department at Winona State. One former student said that it was the hardest 100-level course he had ever taken.

Possin, Kevin, and Craig Hansen. Self-Defense: A Student Guide to Writing Position Papers. Winona, MN: Critical Thinking Lab, 2002.

Recap: In 2022, twenty-four Minnesota libraries joined together in a commitment to retain over a half-million print books which are scarcely-held in Minnesota. It is called the Minnesota Shared Print Collection. This is one of the stories from the Winona State share of the collection.

Possin, Kevin. Self-Defense: A Student Guide to Writing Position Papers