From 1975 to 1979, Xi studied chemical engineering at Beijing's prestigious Tsinghua University as a "Worker-Peasant-Soldier student", where engineering majors spent about one-fifth of their time studying Marxism–Leninism–Mao Zedong thought, doing farm work and "learning from the People's Liberation Army".[14]
From 1979 to 1982, Xi served as secretary for his father's former subordinate Geng Biao, the then vice premier and secretary-general of the Central Military Commission. This gained Xi some military background. In 1985, as part of a Chinese delegation to study American agriculture, he visited the town of Muscatine, Iowa.[15] This trip, and his stay with an American family, has been considered influential in his views on the United States.[16]
From 1998 to 2002, he studied Marxist philosophy and ideological education in an "on-the-job" postgraduate programme at the School of Humanities and Social Sciences, again at Tsinghua University, and obtained a Doctor of Law (LLD) degree, which was a degree covering fields of law, politics, management, and revolutionary history,[17] though commentators have questioned this qualification.