There are many out there! read them with a grain of salt and try not to remeber everything you read, I usually lost alot of $$ after reading one and playing. I take the smaller pieces of advice and incorperate them into my play. Everytime I have a home game one of the regulars always says, "The book say I should do this", he reads alot of them and I take his $$ each week. He has vowed to burn the books and forget everything he has read!!!