This document provides an overview of Saudi Arabia across several topics: geography, history, economy, education, demographics, culture, and government. Saudi Arabia is located in the Middle East, with a land area of approximately 2.1 million square kilometers. It has a population of over 28 million people and an oil-based economy, with oil revenue accounting for roughly 45% of its GDP. Saudi Arabia is governed as a monarchy with the king as the head of state. The main religion is Islam and Arabic is the official language.