Donald E. OLSEN, FAIA, address: (office) 1349 Powell Street Emeryville, California 94680, phone 415 658-2222 (home) 771 San Diego Road, Berkeley, California 94707 phone 415 524 5764 (university) Department of Architecture , University of California, Berkeley, California 94720, phone 415 642-4942, 415 642-4413. Affiliations: American Institute of Architects; Fellow American Institute of Architects; British Society for the Philosophy of Science; Society for Philosophy and Technology; Newsletter for those interested in the philosophy of Karl Popper. Education: Bachelor of Architecture, University of Minnesota; Master of Architecture, Harvard University (on scholarship); A.W. Wheelwright Fellow, Harvard University; Postgraduate Study in Civic Design University of Liverpool; Post Graduate study in philosophy of science, The London School of Economics 1962-63 and 1968. Private Architectural practice 1954 to present, professor or architecture, University of California 1954 to present; Guest Professor - American and European Universities. Interest in Popper's philosophy: Epistemology, facts and decisions, holism, determinism v.s. indeterminism, world III etc., growth of knowledge, evolutionary epistemology. Publications: Magazine articles; mainly articles about me or my work. Activities: study of philosophy, travel and travel photography. News of that might be of interest to other readers: Insatiable interest, alas, by architecture students in phenomenology. Especially Martin Heidegger; and now also Michel Foucault. These things come in fashion waves. To dissuade students is about like fighting the tide of the pacific. But these fashions are short lived - five or six years and a new fad takes over. This has been gathering momentum the better part of ten years and is at a high point just now. I suspect it will dissipate soon.