He has authored over a dozen books and many additional reports on wealth preservation, privacy and offshore investing. Mark serves as president of his own international consulting firm, The Nestmann Group, Ltd. The Nestmann Group provides international wealth preservation services for high-net worth individuals. Mark is an Associate Member of the American Bar Association (member of subcommittee on Foreign Activities of U.S. Taxpayers, Committee on Taxation) and member of the Society of Professional Journalists. In 2005, he was awarded a Masters of Laws (LL.M) degree in international tax law at the Vienna (Austria) University of Economics and Business Administration.'