I wish I had read this book first before I ever started playing poker. I developed some bad habits over time and then I found the Gripsed poker site
and Power Holdem by Negreanu. I follow many of the concepts that Negreanu advocates in Power Holdem. Some of the concepts I have posted on the wall next to my computer which I read every day before I play poker and I can actually hear myself quoting these concepts when certain situations come up. I used to think AJ suited/off suit was a golden hand but I've since learned my lesson both on and off the felt with this hand, especially when trying to play it under the gun. I also learned a lot about not focusing on my hand, but the hands my opponents have within a certain range based on their position at the table. I would recommend this book to anyone, especially a novice just starting out.