This comprehensive book by Dr. Ayad Abdel Fattah Al-Nusour delves into the core principles of modern economic concepts and systems. Published in 2015, it serves as an essential guide for students and professionals, offering a detailed analysis of contemporary economic theories, market structures, and global financial policies. The text meticulously examines the evolution of economic thought, contrasting classical theories with modern approaches and providing readers with a robust framework for understanding the complex dynamics of today's global economy.