This PDF download can be used as the course student companion book to the online course - http://www.nachi.org/customer-service-communication.htm.
For those Members who hold BPI certification, you can receive free CEUs for taking InterNACHI’s course - http://www.nachi.org/bpi-approved-internachi-course.htm
Thank you BPI!
Thank you, Nick and Ben. I hope there are more under consideration …