'Here are some things we must do', paper given at Vision 67 Conference: Design for survival, New York University, 1967

'Some observations and proposals relating to the design of block diagrams and flowcharts', paper given at conference on The visual communication of scientific and industrial information, Society of Industrial Artists and Designers, Harwell, 1968

'The designer as chameleon?', paper given at lcograda London design student seminar, Odeon Marble Arch, 1974

'The use of short term feedback in the preparation of technical and instructional illustration', paper given at Conference on Research in illustration, Brighton Polytechnic, 1981

'Computer graphics: battleground or seedbed', paper given at Computer graphics 82 conference, Online, Royal Lancaster Hotel, 1982

'Graphic design 1951-61: a personal memoir', paper given at conference on Postwar graphic design, Kingston Polytechnic, 1983

'One-man band to full-blown orchestra', paper given at conference on Graphic information design, Harrow College of Higher Education, 1984

'Where do we go from here?', lecture given at Gwent College of Higher Education, 1987

'Improper lettering', paper given at Lettering forum, University of Oxford, 1988

'Thirty years a designer and I'm still fiddling about', lecture given at School of Architecture, Texas A&M University, 1989

'Nothing succeeds like failure: the maverick tendency in graphic design'. paper given at conference on Word and image: history of graphic design, Design History Society, City University, 1989

'Some of my best friends are machines', paper given at conference on Design/technology/communication, PIRA/Royal Society of Arts, 1990

'The relevance of Rietveld's work to graphic design'. paper given at Rietveld day school, University of Warwick, 1990

'The ideal and the actual', paper given at Monotype conference on Typographic connections, Queens' College, Cambridge, 1993

'Design and the spirit of the place', lecture given at School of Art, University of Michigan, 1995

'Passionate physiographer: design and execution of A Wainwright's Pictorial Guide to the Lakeland fells', paper given at British Cartographic Society's Annual technical symposium, University of Reading, 1996

'Here are some things we should have done', lecture given at Royal College of Art, London, 1999

'Latch on to the affirmative?', paper given at Voice.02 AIGA conference, Washington, DC, 2002

'Harry Beck's Underground map', paper given in Lie of the Land Series at British Library, London, 2002

'70 years of urban transit diagrams: a progress (?) report', paper given at Fontshop's Typo 2002 conference, Berlin, 2002

'Metaphors', lecture given at Lincoln School of Art and Design, 2003

'A backward look', paper given at Profile Intermedia 6: Voyeur, Hochschule fur Kunste, Bremen, 2003

'First things first revisited', lecture given at International Centre for Creativity, Innovation and Sustainability, Denmark, 2004

'Serious, but not too serious', paper given at Visuelt 2005: Serious Play, Grafill, Oslo, 2005

'Harry Beck and Edward Johnston: the connection', paper given at Pen to Printer seminar, Edward Johnston Foundation, Ditchling, 2005

'Street graphics', lecture given at School of Art & Design, Coventry University, 2006

'Graphic information: the long view'. lecture given at Museo Franz Mayer for El Centro de Estudios Avanzados de Diseno. Mexico City, 2006

'The everyday graphic art of the street', paper given at Rethinking the everyday conference, National College of Art & Design, Dublin, 2006

'Ethics in design', lecture given at School of Arts, Media & Culture, University of Sunderland, 2007

'My nominations for (relatively) unsung graphic design masters, 1950-2000', paper given at Great British Design? conference, St Bride Library, London 2007

'Subtraction', paper given at D&AD XChange conference, London College of Fashion, 2007

'The word in on the street', paper given at ATypI Hands on conference, University of Brighton, 2007

'I'm not entirely sure', contribution to Who do you think you are? symposium, Design Museum, 2007

'A small comment about a large subject: publishing', paper given at Bold italic conference, Sint-Lucas Visual Arts, Ghent, 2009

'Sustainability: how about some 'do's'?', paper given at Design Paradigms: Sustainability programme, University of Brighton 2009

'Publishing today, tomorrow and the day after: a very personal view', contribution to On Publishing symposium, University of Lincoln, 2009