Karl Pohrt, founder of Shaman Drum Bookshop in Ann Arbor, Mich., died on Wednesday. He was 65. Pohrt was diagnosed with anaplastic thyroid cancer in October 2012 and wrote about his illness on his blog, thereisnogap.com.

In 2009, plunging textbook sales and the economy forced Pohrt to close 29-year-old Shaman Drum, which had been located on the edge of the University of Michigan campus in Ann Arbor. He also ran the nonprofit Great Lakes Literary Arts Center, which he founded in 2008.

“Karl Pohrt was a true bookman: a bookseller, compulsive reader, and a publisher as well. He had a very strong sense of the material and spiritual value of the reading experience. He was a man with a mission and an unshakeable devotion to the idea that books could transform human beings and the world for the better,” said Bruce Joshua Miller of Miller Trade Marketing in Chicago. “He was the godfather of bookselling in Ann Arbor and Michigan. He’s already missed,” commented Deb Leonard, executive director of the Great Lakes Independent Booksellers Association.

A memorial service will be held for Pohrt on Sunday, July 14, at 2 p.m. at the Episcopal Church of the Incarnation, 3257 Lohr Road, Ann Arbor. The family requests that donations be made to the church or to the Children’s Literacy Network.