The scientist whose biography is titled "Einstein: His Life and Universe" is Albert Einstein. This comprehensive account, penned by Walter Isaacson, explores Einstein's groundbreaking contributions to physics, particularly his theories on relativity and the photoelectric effect. The biography provides insights into his personal life, including his relationships, struggles, and the socio-political context influencing his work. It highlights how Einstein's scientific inquiries transformed our understanding of the universe, making complex ideas accessible. Isaacson’s portrayal of Einstein emphasizes his humanity, curiosity, and enduring legacy as a pioneer in the field of theoretical physics.