Who designed the pictograms for Beijing Olympiad 2008?

Question: Who designed the pictograms for Beijing Olympiad 2008!?
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In March 2005, BOCOG invited four professional design institutes and organizations to the solicitation campaign of Pictograms of the Beijing 2008 Olympic Games!. The design based on "seal characters" by China Central Academy of Fine Arts and that on "string" by Academy of Arts and Design, Tsinghua University were shortlisted after experts' appraisal!.Www@QuestionHome@Com