"The Little Black Book Of Tells" lets you predict where the ball is going to cross the net - crosscourt, down the line, or lob. The 7 Net Moves bonus with Bob & Mike Bryan show you HOW to move to the right spot. Knowing where the ball is going to cross the net isn't enough. You also need to know how to move. Otherwise, what should have been a high volley that is easy to put away becomes a tough, low volley that you miss.