David Penn is the editor-in-chief of TradingMarkets, which he joined in 2007 as senior editor and assumed editor-in-chief in 2008. From 2000-2007, he was the technical writer for Technical Analysis of Stocks & Commodities magazine, as well as the senior contributor to both Traders.com Advantage and Working-Money.com. Mr. Penn has written over 1,300 articles and market commentaries on trading, technical analysis, and market psychology. He is the author of Momentum Indicators That Work, which is part of a series on technical analysis to be published by Marketplace Books. With a background in print, online, and broadcast journalism, Mr. Penn completed his undergraduate studies at the University of Maryland Eastern Shore and earned two Master's degrees from the University of Arizona.