PreferredStockInvesting ( is the home of the eBook Preferred Stock Investing, Fifth Edition, by Doug K. Le Du. Doug's standard-setting book teaches investors how to use the highest quality preferred stocks to earn above average dividend income while simultaneously creating multiple downstream capital gain opportunities, with next-to-no effort. One of the highest reader-rated books in the U.S., Preferred Stock Investing pioneered the "CDx3 Compliance Score" method, ranking preferred stocks by ten important investment criteria.

A free eBook download is available on the site, along with information on the Preferred Stock ListTM database system, the CDx3 notification service, and several free resources for preferred stock investors including a "preferred stock Q&A" and a free weekly newsletter.