Bronchoscopy means pictures: but to comprehend an image we have to learn to see. These excellent photographs, all taken by the author himself, not only instruct us in the art of seeing just about all there is to see in the bronchial system but also illustrate many relationships between visual appearances and the clinical situation. They go even further in correlating bronchoscopic find ings with the function of the lung. Treated in this way, the image comes alive. Anyone who has come to know DE KOCK as a brilliant clini cian, or who has worked with him in the lung function labo ratory - he...