Education development thrust has significant changed due to the increasing globalization and world economics competition among countries. Education has taken on greater strategic importance in the total human resources development.Therefore, the International Standard School program (ISS)in Indonesia is the result of globalizing of world economic and Internationalization of education. This book provides an assessment of ISS program implementing English as medium of instruction in the teaching and learning process. The analysis should help the Ministry of Education of Indonesia as Policy Maker, School administrators, teachers and community as stakeholders of education to consider the findings to strengthen the program and further improve it as well as facilitate the attainment of its objectives.