This is really good. It gives advice on how to change basic play based on the count whether it is positive or negative. I just got back from a trip to Las Vegas where I tried it (I already counted cards). I am pretty sure that I did better with the modifications than if I were not using the modifications. The author does note, however, that counting is the main thing, and that even the MIT team didn't use the adjustments even though they knew about them. (7/9/11)