Poker demands many skills and strategies. To be successful, you must be able to master all of them and then apply them at the appropriate times. They include proper hand selection, bluffing, semi-bluffing, understanding tells and telegraphs, and reading hands. These skills do not come easily since they require unnatural actions. You cannot win just by "doing what comes naturally," Dr. Schoonmaker is concerned "only with the way that psychological factors affect your own and your opponents' ability to play properly. For example, have you ever wondered why some players seem extremely aggressive...