The man is studying the "Selected Works of Mao Zedong", Volume 1, published 1951 (毛泽东选集 第一卷, Mao Zedong xuanji di yi juan).
The book in the bottom right corner: 马恩列斯思想方法论 - Ma En Lie Si sixiang fangfalun - Marx-Engels-Lenin-Stalin thought methodology.
Pictured in the background, from left to right: Marx, Engels, Lenin and Stalin.