Robert A. Walker is a tax attorney, university professor, and inveterate traveler. He started traveling while still in high school. To date, he has visited over 100 countries – but notes that with approximately 200 in the world – he has 100 more to see. For the first ten years of his professional career, he was a travel agent and tour operator and arranged meetings and conventions primarily for the General Electric Company. After returning to and completing law school, for approximately the next ten years, he was a trial attorney with the Office of Chief Counsel (International) of the Internal Revenue Service at its headquarters in Washington, D.C. For two years, from 1996 to 1998, he was an International Fulbright scholar and taught graduate students at KIMEP, the Presidential Institute for M.B.A.s, in Almaty, Kazakhstan. For the past ten years, he has taught business law and accounting for the University of Maryland in its overseas divisions. He has led seminars for professionals and taught graduate and undergraduate students in Kazakhstan, Kyrgyzstan, Russia, South Africa, Japan, Korea, Germany, and Italy.