Mankato (KMKO)-The president of the Greater Mankato Convention and Visitors Bureau has been honored with a certification.  Anna Thill recently received her certification as a Certified Destination Management Executive through Destination Marketing Association International. Thill is the first CVB President in its 30 year history to earn this certification.  The certification is recognized by the industry as its highest educational achievement. This advanced educational program offers senior-level professional development courses for executives focusing on vision, leadership, productivity and the implantation of business strategies.