Main Menu

Contact Us

Knowledge House Products

13900 W. Polo Trail Drive
Lake Forest, IL 60045
Phone: 1-(800)-295-3737
Hours of Operation: M – F 9am – 5pm, Central Time

If you are interested in becoming a wholesaler of Dr. Cass Ingram’s books call 1-800-295-3737 or email [email protected]

For All Orders Outside the USA & Canada Please Call 1-800-295-3737

Feel free to contact us using the contact form below: