As our world becomes increasingly interconnected, we face a multitude of challenges that impact our global community. From climate change to political polarization, the issues we face are complex, multifaceted, and interrelated. This book, "A Comprehensive Overview of Global Challenges," seeks to provide a broad understanding of these challenges and offer insights into potential solutions. The book is divided into 15 chapters, each focusing on a particular global challenge that affects individuals and societies around the world. These challenges include climate change and environmental degradation, income inequality and poverty, access to quality education and healthcare, political polarization and division, discrimination and prejudice based on race, gender, religion, and sexual orientation, cybersecurity and privacy concerns, increasing levels of debt and financial instability, displacement of people due to war, conflict, and natural disasters, global pandemics and public health crises, nuclear weapons proliferation and the threat of war, corruption and lack of transparency in government and corporations, food insecurity and malnutrition, aging population and declining birth rates in some regions, lack of affordable housing and rising homelessness, and addiction and mental health issues. The aim of this book is to provide readers with a comprehensive understanding of these issues, their causes and effects, and potential solutions. Each chapter explores the latest research and data on the topic, as well as case studies and real-world examples that illustrate the impact of these global challenges. The book also examines the roles of various stakeholders, including governments, non-governmental organizations, corporations, and individuals, in addressing these challenges. This book is intended for a broad audience, including policymakers, academics, students, and anyone interested in gaining a deeper understanding of the global challenges we face today. We hope that this book will serve as a valuable resource for readers, inspiring new ideas and solutions to the complex issues that affect our world.