One of the most important international languages is English Language. It is considered as a requirement for studying abroad for several decades. In particular, most of the textbooks in all the different disciplines are in English, including business textbooks. - See more at: http://www.live-from-campus.eduniversal-ranking.com/live-from-alquds-university-faculty-of-business-economics/international-students/english-language-is-the-key-to-success.html#sthash.xPRnRgXG.dpuf