This book explores the potential of solar drying technology in Biskra, Algeria, a region with abundant sunlight and a strong agricultural sector. It examines the principles of solar drying, the types of systems available, and how they can be optimized for local conditions. The book highlights the economic and environmental benefits of solar drying, including reduced energy costs and improved product quality. It also addresses technical challenges and offers solutions for enhancing system efficiency. Through a combination of theoretical insights and practical recommendations, the book aims to promote sustainable agricultural practices and the widespread adoption of solar drying technologies in arid regions like Biskra.