Structural Analysis With A Ninja

This book has been ruined by some person who thought he was funny. He has also signed the book. And drew another ninja. And put an alien on the back. The cost is 7.50 postpaid anywhere in the States, 5 dollars here in the store. For more visual punishment, click on the profile view, or go to:

http://greendiggers.blogspot.com/

and

http://reddiggers.blogspot.com/