Nothing dominates business coverage in mass communication like Wall Street. During the day, viewers of CNBC, Fox Business Network and Bloomberg TV are bombarded with live reports from the trading floor of the New York Stock Exchange, along with a rolling tape of stock prices on the bottom of the screen. Yet few experienced journalists, let alone beginning business reporters, understand enough about what is happening to be able to write a cohesive and clear story about how the stock market performed in a single day or why the stock prices of particular companies might have risen or fallen.