""X. Y. Z. of Wall Street"" is a book written by Arthur Platt Howard and first published in 1902. The book provides a comprehensive guide to the world of Wall Street, covering topics such as the history of the stock market, the role of brokers and speculators, and the intricacies of stock trading. Howard offers insights into the inner workings of the financial world and provides practical advice for those looking to invest in the stock market. The...