The growing world population is constantly driving the food demand up. Coupled with the ongoing environmental concern farmers are required to be more precise in food production in order to increase food production and at the same time be environmentally sustainable. This book looks at the various technologies that help farmers gradually achieve precision agriculture (PA). The book discusses technologies that help observe measure and compute variabilities in production in order to achieve accuracy in operations. The book also looks at the importance of PA in quality assurance of activity and processes along the value chain by ensuring transparency among value chain players and ensuring compliance with good agricultural practices (GAPs). This book will help the audience understand the principles of PA in crop and animal production and also help them gradually adopt PA practices in production based on their level.