Only the middle section (P. 80 - 200) - "Playing Smart" - is unsurpassed to this day in spite of the relative simplicity and for each of the ball sports One-to-One (tennis, table tennis, badminton, squash etc) plays a veritable treasure trove. Alone the 40 pages "Destroying your Opponents gameplan" where simple remedy usual game strategies (slide, runners, ServeRAID and volley player, etc) are presented, worth reading and rereading. But who has already understood the basic idea, namely, that to succeed in a competitive sport like tennis, not only to hear its own technical and physical fitness, but also the intellectual understanding of the enemy's game plan and if possible the crossing will benefit from reading.
Conclusion: A great book - an updated to today's top players version would make it perfect!