Urban forests play a critical role in maintaining ecological and socio-economic balance in cities. Part I introduces urban forests, defining their scope, historical significance in city planning, and importance for biodiversity and ecosystem health. It also examines land use and land cover changes (LULCC), highlighting urbanization's effects on forest cover, biodiversity, and ecosystem functions. Part II explores the ecosystem services of urban forests, including their role as carbon sinks, climate regulators, and contributors to air quality improvement. Cultural and social benefits like recreation, aesthetics, and mental health are discussed, emphasizing community involvement in preservation. Part III addresses challenges such as climate change, deforestation, and policy gaps. Solutions include integrating forests into urban planning, leveraging technology like remote sensing, and fostering community-driven initiatives. Part IV provides global case studies, contrasting forest cities in developed and developing nations. The final chapter synthesizes findings and offers actionable recommendations for policies and community engagement to ensure the sustainability of urban forests.