This essay provides a comprehensive overview of corporate social responsibility (CSR), defining it as a company's obligation to serve society. It explores the evolution of CSR from theory to management practices, emphasizing its role in enhancing a company's image. The essay delves into various CSR theories, including the triple bottom line and stakeholder theories, highlighting their connection to sustainability. Economic, social, and environmental sustainability are discussed in the context of the triple bottom line approach. The stakeholder's approach is also explained. The essay uses IKEA as a case study, analyzing its sustainable practices in home appliances. IKEA's commitment to sustainable suppliers, energy-efficient products, and lean production processes are examined to illustrate how CSR integrates with sustainability. The essay concludes by emphasizing the importance of integrating CSR and sustainability for long-term success, benefiting both society and the company.