William Playfair
William Playfair (22 September 1759 – 11 February 1823) was a Scottish engineer and political economist. The founder of graphical methods of statistics, Playfair invented several types of diagrams: in 1786 the line, area and bar chart of economic data, and in 1801 the pie chart and circle graph, used to show part-whole relations. Playfair has been claimed to have been a secret agent for the British Government, although this is disputed. Provided by Wikipedia|
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by Playfair, William
Published 1787
Published 1787
Printed for J. Debrett, Piccadilly, and G.G.J. and J. Robinson, Paternoster-Row
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by Playfair, William
Published 1787
Published 1787
Published by J. Debrett, Piccadilly, and G.G.J. and J. Robinson, Pater-Noster-Row; Sewell, Cornhill; and I.S. Neele, Engraver, No. 352, Strand
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by Playfair, William
Published 1786
Published 1786
printed for J. Debrett, Piccadilly; G. G. and J. Robinson, Pater-Noster Row; J. Sewell, Cornhill; the engraver, S. J. Neele, NO. 352, Strand; W. Creech and C. Elliot, Edinburgh; and L. White, Dublin