Ibn Al-Haytham, also known as Alhazen, was a prominent Arab scientist and philosopher born around 965 CE in Basra, present-day Iraq. He is often referred to as the "father of optics" for his groundbreaking work in the study of light and vision. His most famous book, Book of Optics, laid the foundation for modern optics and introduced concepts such as the camera obscura. In addition to his contributions to optics, Ibn Al-Haytham made significant advancements in the scientific method and experimental physics. He emphasized the importance of observation and experimentation, influencing later scientists like Galileo and Newton. His work remains relevant in various fields, including physics and astronomy.