Knowledge House Publishers

13920 W. Polo Trail Drive
Lake Forest, IL 60045
Phone: 847-473-4798
Hours of Operation: M-F 9am-6pm, Central Time

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

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

Feel free to contact us using the contact form below: