This book has been written to meet the needs of students preparing for the GCE O Level Social Studies Exam with effect from 2018. It covers all the units that are taught in the Secondary 3 and Secondary 4 syllabus: Issue 1 on Exploring Citizenship and Governance, Issue on Living in a Diverse Society and Issue 3 on Being Part of a Globalised World. This book serves to support students in the learning of source-based case studies and structured-response question skill and preparing students for their examinations. The inquiry-based questions at the start of each issue hopes to inculcate in students an investigative and critical-thinking mindset.