Daniel M. Cislo - Attended in 1984
"Joel Berk was very entertaining and extremely informative."
Southern California Gas - All Testimonials
Jan L. Coyne - Attended in 1984
"Joel Berk presented very difficult material in a precise, enjoyable manner."
Robert Fryke - Attended in 1984
"Excellent. I have been asked questions by customers about margins, phantom taxes. I can answer now!"
John Kleinbauer - Attended in 1984
"Joel Berk made a very dry subject interesting. Time well spent."