Len recently became an International #1 Best Seller as all 4 of his books reached #1 status on Amazon: "War on Waste Innovation," "The War on Waste Paradox" & "Tribal Knowledge Paradigm" & "How to Win the War on Waste in 90 Days."

Go to the Bertain Consulting Group Store

and Shop for Len's Products


   Sign up Now  ⇒ ⇒ ⇒

  • Sign up for our newsletter
  • Get 25% off all 4 of Len's Books
  • Sign up to get discount code 

       Sign up Now  ⇒ ⇒ ⇒

Sign up here!!!

Perry Marshall


Len Bertain

Perry Marshall is the preeminent expert in using the 80/20 Rule to define the rules of Internet Marketing.  He has literally defined this new way of looking at the Internet.  We are honored to have him interview Len for his monthly show.  This interview reviews many of the things we do in the War on Waste.

 Bertain Consulting Group © 2014     Contact us at email: len@bertain.com or tel: 510-520-8011