 Separated into ‘tours’, QS’ event offerings typically comprise a series of university and business school fairs.The QS World MBA Tour is the world's largest series of international business school fairs, attended by more than 60,000 candidates in 100 cities across 50 countries.The QS World MBA Premium also focuses on MBA student recruitment, but invites only business schools ranked in the top 200 internationally, according to the QS World University Rankings.