 Throughout their travels, both captured still photographs and films as well as writing articles.In addition, they wrote a weekly radio program about their travels for Czechoslovak Radio, which became one of the most popular on the station; since they lacked the means to broadcast from the locations, they simply wrote the scripts and sent them back to Czechoslovakia, where their voices were recreated by two actors.Their works of travel literature include eleven full-length books full of photographs and descriptions of the economic and socio-political situations of the places they visited, four picture books, three children's books, and 150 short travel documentary films.