Many have written requesting me to write a new book. With the desire to help others I have written "45 Years in Wall Street" giving the benefit of my experience and my new discoveries to aid others in these difficult times. I am now in my 72nd year; fame would do me no good. I have more income than I can spend for my needs; therefore, my only object in writing this new book is to give to others the most valuable gift possible--KNOWLEDGE! If a few find the way to make safer investments my object will have been accomplished and satisfied readers will be my reward. In this book I have revealed some of my most valuable rules and secret discoveries never published before, in hopes that others will work and study hard to learn and apply these rules. If they do, speculation and investing will no longer be gambling but will become a PROFITABLE PROFESSION. W. D. Gann
William Delbert Gann (1878-1955) was an outstanding stock and commodities trader. He was also a prolific teacher of how to make speculation a profitable profession, writing some seven books and producing two courses on trading the stock and commodity markets. However Gann's superlative skill was his ability to forecast accurately the stock and commodity markets.
Possibly useful historical information re stock market behavior; Antiquated in that the exchanging of securities has evolved in myriad ways since. Geared more towards traders than buy-and-hold investors but still contains helpful advice for the long run.