Who wrote the book De Revolutionibus Orbium Coelestium?

The book "De Revolutionibus Orbium Coelestium," also known as "On the Revolutions of the Celestial Spheres," was written by Nicolaus Copernicus. Published in 1543, it presented the heliocentric model of the universe, proposing that the Earth and other planets revolve around the Sun. This work is considered a significant milestone in the history of science, marking the beginning of the Copernican Revolution.