Book excerpt: The artist best describes his work "I put on an apron beforehand, of the kind butchers wear in Britain, lest everyday wear hamper me in activity requiring all my skills and capacities but also the luck to succeed at a single stroke. Like a surgeon who must first find within himself the assurance of being able to control what he is bent on undertaking. Before an operation, when homespun logic and routine alone fail to help surmount the crucial moment; one must learn to bring the wonted world of appearances to a standstill." Price $19.95.