The book is in very good condition. There is an indication that a cassette was included in the original package but one is not included nor are there any signs that there was one.

from Amazon - 

(Stylistic Method). Take your playing to the stratosphere with the most advanced lead book by this proven heavy metal author. Speed Mechanics is the ultimate technique book for developing the kind of speed and precision in today's explosive playing styles. Learn the fastest ways to achieve speed and control, secrets to make your practice time really count, and how to open your ears and make your musical ideas more solid and tangible. Packed with over 200 vicious exercises including Troy's scorching version of "Flight of the Bumblebee."