Hal has been designing and developing learning and employee productivity materials and programs for over 30 years. He has produced successful solutions for dozens of large organizations in the NY Metro area, including Merrill Lynch, Memorial Sloan Kettering, PaineWebber, Thomson, Prudential, Pricewaterhouse Coopers, JP Morgan, Citibank, ADP, and NASDAQ. In 1994, Hal joined up with Lou Roberts to form Christensen/Roberts Solutions, a consulting and developing company in the area of Electronic Performance Support Systems www.crsol.com.

Hal is also nationally known for his contributions to e-Learning and Electronic Performance Support design, frequently presenting his work and ideas at national professional conferences. Hal has a Masters degree from the University of Missouri.