 His writings, both topically and stylistically, are not easy to categorize.Plot is frequently secondary to other elements of Lafferty's writing; while this style has resulted in a loyal cult following, it causes some readers to give up attempting to read his work.Not all of Lafferty's work was science fiction or fantasy; his novel "Okla Hannali" (1972), published by University of Oklahoma Press, tells the story of the Choctaw in Mississippi, and after the Trail of Tears, in Oklahoma, through an account of the larger-than-life character Hannali and his large family.