Herbert, Frank. Dune series

Gilbertus Albans has founded the Mentat School, a place where humans can learn the techniques of thinking machines. But he walks an uneasy line in order to survive the antitechnology Butlerian fanatics. Mother Superior Raquella attempts to rebuild her Sisterhood School, with her most talented and ambitious student, Valya Harkonnen, who also has another goal -- to exact revenge for her family's downfall. Meanwhile, Josef Venport conducts his own war against the Butlerians, placing an embargo on any planet that accepts the Butlerian's anti-technology pledge. But fanatics rarely surrender easily ... As the Butlerian fanaticism grows stronger, the battle will be to choose the path of humanity's future -- whether to embrace civilization, or to plunge into an endless dark age