Jim Weller
“Dr. Berk had extensive knowledge about ALL the various companies represented in the room. He kept my interest due to the great context that each example provided!”
Attended in 2007
Director Asset Management
Xcel Energy
“Dr. Berk had extensive knowledge about ALL the various companies represented in the room. He kept my interest due to the great context that each example provided!”
See all testimonials from: Xcel Energy