 Zanker invested millions of dollars into advertising and marketing and revitalized the company.In recent years, The Learning Annex has concentrated its efforts on large-scale events featuring notable speakers such as Donald Trump, Robert Kiyosaki, and Anthony Robbins.Other high-profile speakers include Al Gore, Rudy Giuliani, Alan Greenspan, George Foreman, Julius Erving, David Bach, Joe Montana, Bill Walsh, Kareem Abdul-Jabbar, Richard Branson, Suze Orman, Russell Simmons, Barbara Corcoran, and John Demartini.