The large red man holds a volume of the "Selected Works of Mao Zedong" (Mao Zedong xuanji - 毛泽东选集). Liu Shaoqi, in the lower left corner, drops a copy of his How to be a good Communist (论共产党员的修养), an influential and popular publication violently attacked on Mao's instructions during the Cultural Revolution.

The organizations signing for the publication of this poster (below right):
红代会医学院八.一八 - 8.18 Medical School Red Guards Representatives Assembly
东风大学东风公社 - East Wind Commune East Wind University
红代会财经学院东方红 - The East is Red Finance and Economics College Red Guards Representatives Assembly
河北外专八.一八 - 8.18 Hebei Foreign Languages ​​College
红代会中医学院东方红 - The East is Red Traditional Chinese Medicine College Red Guards Representatives Assembly
红代会音乐学院八.一八 - 8.18 Music Academy Red Guards Representatives Assembly
红代会南开大学八.一八 - 8.18 Nankai University Red Guards Representatives Assembly
红代会河北艺师八.一八 - 8.18 Hebei Arts Teachers College Red Guards Representatives Assembly
红代会天津体育学院毛泽东思想红卫兵 - Mao Zedong Thought Red Guards Tianjin University Sports Institute Red Guards Representatives Assembly
千代会天津人民美术出版社东方红公社 - The East is Red Commune Tianjin People's Fine Arts Publishing House Thousand Representatives Assembly
"8.18" refers to August 18, 1966, the date of Mao's first Red Guards mass inspection in Beijing.