This chapter discusses the major implications of International Schooling, for theory and practice. A key academic challenge remains one of offering a realistic and rational basis for understanding the size of the field. One major challenge in 2014 is to move beyond the popular imagination of viewing International Schooling as an Anglo-American construct serving children of the British, American, Australian and Canadian ex-pat communities. Reconciling the involvement of for-profit International Schooling is actually a substantial theoretical challenge. As seen by numerous reports, the early categorizations of International Schools rejected outright the notion of 'for-profit' or 'proprietorship' schooling. This situation has fundamentally changed and thus requires a complete reconceptualization of the field. One major challenge is to objectively assess the nature, effects and intent of for-profit companies. In one sense, these companies claim to offer a lower-fee education than other providers, allowing greater access and inclusiveness.