Unique because the works are unmistakable, unmatched originals with highly sophisticated contents of great artistic value. Exclusive, because they are not available in shops, but can only be obtained directly from Pro Futura’s publishing partners. As became clear at a very early stage, this not only made it possible to accumulate considerable funds for WWF, but it also meant that WWF’s message was disseminated widely through Pro Futura’s publishing activities. This series of books has become a great success because of their well-researched texts, their artistic Nature photographs and the high quality of their design – which continues to the present day.