See below for English description.Ce livre documentaire aux magnifiques illustrations souligne le génie de William Playfair, né en Écosse il y a 250 ans. La vision différente du monde de ce grand cerveau ne lui a pas toujours rendu la vie facile. En fait, il se retrouvait souvent incompris de ses amis, de sa famille et de ses patrons. Mais il s'est démarqué par sa vision innovatrice de représenter les chiffres en inventant les graphiques linéaires, les diagrammes en barres et les diagrammes circulaires. Les chiffres illustrés... quelle idée de génie!Born in Scotland over 250 years ago, William Playfair was a dreamer who saw the word differently from other people. Unfortunately, this skill didn't easily translate into the fame and fortune he hoped for. In fact, it often got him in trouble with family, friends and bosses. But Will's innovative vision did inspire a big idea that would set him apart: he turned numbers into pictures by creating line graphs, bar graphs and pie charts! Numbers as pictures? There's an idea that's off the charts!Original title: Lines, Bars and Circles: How William Playfair Invented Graphics