The study of international taxation are based on the factors governing the taxation system of a particular country, and being familiar with those factors is the job of an expert on international taxation. The experts must be very well versed with the knowledge on laws administrating the international taxation which plays an important part in the analysis of the international taxation.
The specialists in international taxation are highly in demand among the transnational companies because these international taxation experts are renowned to lower tax liabilities of several companies. The international taxation is especially popular among the accountants and lawyers engaged in legal system of taxation.
Many international tax professionals have "learned on the job", or they are accountants or lawyers or work for the national revenue office doing international tax. This qualification truly identifies you as an international tax specialist. It will "fill in the gaps" of your knowledge of international tax and other jurisdictions.