Contact Us

The Foundation for Critical Thinking

  • P.O. BOX 196 Tomales, CA 94971
  • Email: cct@criticalthinking.org
  • Toll Free: 800.833.3645
    Phone: 707.878.9100
    Fax: 707.878.9111

  • Hours of Operation: 9am - 4pm Pacific Time
  • Days of Operation: Monday through Friday, except major holidays

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