Jacob Sebastian is an engineer, born in India, and a long-time resident and citizen of the Netherlands. (EU). His academic credentials include graduation in Mechanical Engineering (India), post-graduation in Combustion Technology (IIT Madras, India), Post-graduation in Energy Management (Netherlands), and MBA in International Trade and Finance (UK). He has held senior engineering and management positions with the Government of India, an industrial conglomerate in the Middle East, and the European Division of an American Fortune-500 corporation. Subsequently, he set up and operated his own businesses in software development and real estate development. Excelling in academic, professional, and business fields, he has received several achievement awards. As chief engineer of a major petrochemical concern in the Netherlands, he has made a significant contribution to environmental protection by achieving a reduction of 300 million kg of Carbon Dioxide emission through innovation. His passion for Physics and Mathematics is so deep that he chose engineering above medical studies when he had admission granted to both. He has spent much of his life doing calculations varying from engineering projects and budgets for his erstwhile employer companies to project finance for his real estate projects according to investment bankers’ criteria and standards. The extensive calculations and research he did for this series of books and the software “Yieldometer” are the latest testimony to his penchant for exploration. Publishing them devotedly to propagate the knowledge distilled over a long career is a testimony to his roots in a large family of pioneering educators and teachers. Jacob Sebastian lives with his family in Rotterdam, The Netherlands (EU).