Ibn Al-Hassan, also known as Ibn al-Haytham, was a prominent Arab scientist and mathematician 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-Hassan made significant advancements in the fields of mathematics and astronomy. He emphasized the importance of experimentation and observation in scientific inquiry, influencing future generations of scientists. His work remains relevant in various scientific disciplines today.