Probably the best statistical graphic ever drawn, this map by Charles Joseph Minard portrays the losses suffered by Napoleon’s army in the Russian campaign of 1812. Click here for larger image. Beginning at the Polish-Russian border (at left), the thick band shows the size of the army at each position. The path of Napoleon’s retreat from Moscow in the bitterly cold winter depicted by the dark lower band (from right), is tied to temperature and time scales. Find out more. Available for purchase as a poster from famed graphical thinker Edward Tufte.