The book "Analysis of the Level of Post-Harvest Losses in Orange Marketing" offers a comprehensive analysis of losses in the orange market after harvest. It examines the causes of these losses and highlights the factors that contribute to the deterioration of oranges. The research findings illustrate the extent of the losses and provide solutions to mitigate post-harvest losses. Given the global challenges in food supply, particularly in developing countries, this book is of great significance. It addresses the measurable qualitative and quantitative losses along the supply chain, from harvest to consumption. The insights and recommendations in this work aim to improve efficiency in orange marketing and reduce food waste.