The license agreement for Eugene Blanchard's 2007 textbook "Introduction to Data Communications," is a rather extraordinary document: Mr Blanchard will let you do whatever you want with his book provided you live a fairly ethical and honest life. I like the idea, and it's quite a cute provocation in light of the abusiveness of your average EULA.

Introduction to Data Communications since Revision 2.0 has the following licensing agreement. You are allowed to use it, view it, modify it without permission of the author Eugene Blanchard, provided that you agree to the following:

* That you will try to be a better person today than yesterday.

* That you will exercise your body as well as your mind.

* That you will tell the persons dear to you that you love them.

* That you will defend the rights of those who are unable to defend themselves.

* That you will not hurt your family members emotionally or physically.

* That you will respect your elders and care for them in time of need.

* That you will respect the rights of others in their religious beliefs.

* That you will respect the rights of others in their sexual orientation.

* That every man, woman and child has the right to be here and is equal regardless of race, creed or color.

* That you will act honorably in all aspects of your personal and business life.

* That your family is first and foremost the most important thing in your life.

* That when you make a mistake, that you admit it and make amends.

This book is available online in the hope it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.