Learning Guides cover subjects that are designed to be self-teaching. They can be obtained from headquarters at the prices indicated or through the Squadron Education Officer. They are also available at West Marine, but at a higher price, and they may not have all guides in stock. You may order by calling headquarters toll free at l-888-FOR-USPS Monday through Friday between 8:30 am and 4 pm. Visa and Master Card are accepted, and the prices include shipping.  For additional information, log on to the USPS web site www.usps.org.