There has always been the debate about playing tight or loose and, of course, there is loose aggressive and tight aggressive. One book, by David Sklansky "The Theory of Poker" has been the bible of the tight aggressive style of tournament play using the neary biblical concept called the Gap Theory. Well that method of playing has been strongly challenged in the bigger, looser fields of today's poker world and now one author in particular has stepped up with a completely different theory.
Arnold Snyder in Online Ace sets up a completely different style than Sklansky. Whether you are a tight or loose player it pays to know how the other guy plays and the debate between these two styles is worth listening to.
See a very good article Poker Book Wars for a lively debate worth following.
