In publishing, printers are both companies providing printing services and individuals who directly operate printing presses. Printers can include:
* Newspaper printers, often owned by newspaper publishers
* Magazine printers, usually independent of magazine publishers
* Book printers, often not directly connected with book publishers
* Postcard printers
* Stationery printers
* Packaging printers
* Trade printers, who offer wholesale rates within the printing industry
* Wide-format printers, who specialize in wide format prints, such as signs and banners
* Printmakers, artists who create their artworks using printing

Su Zhaozheng (simplified Chinese: 苏兆征; traditional Chinese: 蘇兆徵; pinyin: Sū Zhàozhēng) (1885, Qi'ao Island – 1929, Shanghai), early phase leader of the Communist Party of China, labour movement activist. A native of the Qi'ao Island of Xiangshan County, Guangdong Province, he became a sailor, active in Sun Yatsen's nationalist organization Tongmenghui, and took part in organizing the Sailors' Union in 1920. As its chairman he led the General Strike of Hong Kong's Seamen in 1922 and the great Hong Kong General Strike in 1925. He later assumed the office of Chairman of the All-China Federation of Trade Unions, became a member of the Communist Party in 1925 and almost immediately also in its Standing Committee of the Political Bureau of the CPC's Sixth National Congress. He participated in formulating the plan of Guangzhou Uprising in 1927 and was elected President of Peasants' and Workers' Democratic Government of Guangzhou. Simultaneously, he acted as Minister of Labour in the Leftwing KMT Government of Wuhan. He died from overwork in Shanghai in 1929.
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