Mastering day trading takes knowledge. In order to thrive and do well with day trading you first have to know the functions of the markets, some of the commonly day traded financial products, and a bit about brokerage basics. Next you'll have to learn who some of the major players in the market are and where you fit in the mix. Lastly you'll have to know about some of the developments in modern trading and how to go global with your day trading business.