Einmarsch der Warschauer Pakt Truppen in die CSSR: Reaktionen auf die Moskauer Vereinbarungen - Schweiz
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Christian Ziegler is a former biologist who later became a photojournalist who have took over 100 photos, 8 of which were for National Geographic. He is known for a photograph of a coffee table which he took for the Smithsonian Tropical Research Institute and a forest in Barro Colorado Island which was used in a science book called A Magic Web, published by Oxford University Press in 2002. Later on, he collaborated with Egbert Leigh as a co-author and together they published a book of orchids which was published in 2011 by University of Chicago Press. Currently he is a member of the Photo Society.