The first of the three books, The Visual Display, is the one most likely to be of immediate use to a chemical scientist because it provides more examples (both good and bad ones) than the others of the traditional, two-dimensional graphs that we are likely to use in our work. The first two volumes have sold more than two hundred thousand copies. Because no one else would take on what seemed to be such a totally impractical project, he established his own company (sacrificing his garage). The author, a Professor of Political Science, Statistics, and Computer Science at Yale University, is also the founder of The Graphics Press. The books are certainly as much works of art (and craft) as they are of science. The books are printed on heavy paper stock, and the fact that contributing artists, the typeface, the printing company, and the bindery are all credited on one of the back flyleaves is one indication of how seriously the presentation is taken. Some of the colored pages were put through more than 20 printing steps in order to render the subtle shadings required. The books are set in Monotype Bembo, a lead typeface designed so that smaller sizes open the surrounding white space, producing a pleasing balance. He has designed the books so that the reader almost never has to turn a page to see the image, graph, or table that is being described in the text. Tufte illustrates these principles through all three books, going to extremes in the care with which he presents examples, both good and bad. Serve a clear purpose: description, exploration, tabulation, or decorationīe closely integrated with the statistical and verbal descriptions of a data set Reveal the data at several levels of detail Induce the viewer to think about the substance rather than the graphical designĪvoid distorting what the data have to say Quantitative graphics should: Show the data The most important of all the practical advice in these books is found on the first page of the first book, The Visual Display of Quantitative Information. Tufte about the expression of information through graphs, charts, maps, and images. Visual Explanations: Images and Quantities, Evidence and Narrative is the most recent of three books by Edward R. Visual Explanations: Images and Quantities,Įdward R. some of these provide the general trend of change.The Visual Display of Quantitative InformationĮdward R. instantaneous (in most cases approximate) values of certain continuously altering/changing variables such as pressure, temperature and speed etc. These displays proven qualitative information i.e. They provide information about a limited number of discrete states of some variable. The least count of the scale, the scale markers, the numerical progression used, type of the pointer and type of illumination etc., are the special features of quantitative displays which require consideration. Some arrangements with quantitative visual displays are illustrated in Fig. The distinct advantage of the moving scale type design is that it occupies less panel space since the entire scale need not be displayed and only a small portion just against the fixed would serve the purpose.
When we compare the relative advantages and limitations of a fixed pointer and fixed scale types we find that the moving pointer type provides us a perceptual feel of the quantification which is not in case of moving scale types. These are now being increasingly used e.g. Digital counter display is more suitable for making quick and precise numerical readings.
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