Contact Us

customer service: 
     Send a note to info@eugenelieber.com

     Please direct your questions, comments, and suggestions
     to the above email address.

     We will respond promptly if you tell us you have a problem
     or concern with the lecture materials you have purchased. 
     All other messages will be answered as soon as possible.

     We hope the lectures arouse much critical thinking and many
     lively discussions.