I bought this book after seeing a few episodes of Late Night Poker and not being able to understand any of the rules. After just a couple of chapters, I was well versed in the rules, and had even learnt a few useful tactics.
The first half of the book deals mainly with the game mechanics, with a few tactical ideas being developed. The second half deals with actually participating in the game. Many, many situations are analysed, and the different options are discussed and weighed up.
Armed with this knowledge, I taught my mates at college the rules and we played most lunchtimes in the common room. I also now hold regular poker nights at home for friends, playing for about £10. It's a great nights entertainment-beer and cards.