This book is an essential tool for anyone - entrepreneur, manager, professional, public official, private citizen - driven by the desire to understand the complex dynamics of the Kingdom of Saudi Arabia and its future prospects. This understanding is crucial for undertaking or developing entrepreneurial, business, cultural, and/or non-profit activities in the country. The primary objective of the book is encapsulated in the phrase «knowing the past to understand the present and foresee the future». It aims to inspire the courageous and enlightened entrepreneur, who will find significant points of reflection from the examples provided regarding industrial districts, technological hubs, circular investments, and their development, including through the use of Islamic Finance and its alternative instruments. These are considered among the pillars of developing a diversified economy, supporting the private sector, and aligning with the goals of Vision 2030.