Learn how to drastically change your serve through 6 exercises that will increase your racquet speed and acceleration in a very significant way. This book includes: - The 6 Superman Tennis Serve exercises - The 3 charts that will teach you how to do them in an organized manner. - Detailed explanation on each phase of the charts. - 6 Serving tips - 12 tennis competition tips to improve your overall game INCLUDES THE SERVE HARDER DYNAMICS VIDEO which explains technical aspects of the serve in order to serve faster. This is your chance to have the best serve ever with this training that will change the way you approach your serve. Using a scientifically proven method to increase your racquet head speed and acceleration through 6 exercises. Do you want to start winning more matches thanks to your serve? Want to make a big difference in the results you have in your matches and tournaments? Well, in tennis, YOU SPEND AT LEAST 46% OF THE TIME SERVING! Which means that the better you serve, the better your chance is of controlling that 46% of your match. The remainder of the match you spend on returning serve and hi