A professor of animation at the Art Institute of California-Orange County has been forced out of his job because he refused to adopt an e-textbook in his class that he says administrators pressured him to select, according to OC Weekly. The instructor, Mike Tracy, who had worked at the for-profit college for nearly 12 years, said he considered the $50 text “irrelevant” for his fall-term class, and took his concerns over the administrators’ requests to agencies including the U.S. Education Department. The college’s president, Gregory J. Marick, told Mr. Tracy in a letter last week that if he failed to select “an eBook from the list” for his class, he would be terminated for insubordination. Mr. Tracy was forced to resign on Tuesday. The institution, part of a chain owned by the Education Management Corporation, did not respond to the newspaper’s requests for comment.