Sun Tzu wrote a sequel to his famous book "The Art of War" called "The Art of Zuka."
The "Kama Sutra" was based of "The Art of Zuka" however it left out parts the author deemed "not physically possible."
There is a maneuver called "The Ultimate Zuka," if performed correctly the participants will experience "bliss normally reserved for the gods," if performed incorrectly neither participant will be able to walk for a month.
Hugh Hefner, John F. Kennedy, and Benjamin Franklin all own a copy of the "The Art of Zuka."
To make conforming to the One Child policy easier, China has banned the "The Art of Zuka" within its borders.
Conservative groups have tried to ban "The Art of Zuka" in the US, unfortunately any trial where part of the book is read out loud quickly turns into an orgy.
Most adult book stores refuse to stock "The Art of Zuka" fearing that their customers would loose interest in their regular stock.