Oxygraphics was established in 1982 by David Walker. and the late Tom Delieu. It had two aims. The first was to further the development and utilisation of oxygen electrodes in apparatus primarily intended for the measurement of photosynthesis by isolated chloroplasts and leaf discs. This aspect of its work has long since been subsumed by Hansatech Instruments in a fruitful co-operation which started a decade or more earlier. The second aim was to publish related books by David Walker. This continues but with excursions into what might be described as popular science as well as a couple for 9-13 year olds.

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