Charles Dow is the „inventor” of technical analysis. He is the co-founder of Dow Jones & Co. and its newspaper Wall Street Journal. Charles Dow published his market observations in the Wall Street Journal which were very helpful to readers.
Charles Dow also created the first stock market average which is now called Dow Jones. It consists of 20 transportation, 30 industrial and 15 utility stocks. Now there’s Dow Jonees Transportation, Dow Jones Industrial average also available separately.
Note that if there can be an extremely short and not-enough-telling introduction to Charles Dow then this is it! Expect more about him in the future.