At first glance Smoke Line appears to be a simple book of landscape photographs, with the twist that each spread consists of two photographs that combine to create a panorama effect. The fields of vision of the pairs usually overlap, perhaps mimicking the way human eyes take in visual information. The landscapes range from meadows to foggy mountains to the desert. The last half of the book begins to hint at the experience behind the work: we see a shaman, some people sitting in a stone dwelling, a man in a turban. In his text following the photographs Tsuda explains that they were taken in remote areas of China, Morocco and Mongolia. He feels that there is a kind of wind belt encompassing the globe which unites its regions, a transparent band, a river of wind, and that to see the world transparently one must not fear closing one's eyes. He goes on to describe his almost mystical encounters with the people who guided him through these places far from modern civilisation. In this way Smoke Line becomes less a book of landscape photography and more a mysterious travelogue.