Explore the fascinating field of Numerical Relativity in this insightful 38-minute talk delivered at the 2023 North American Einstein Toolkit School and Workshop. Delve into the computational techniques used to simulate and study complex gravitational phenomena as presented by Alexandru Dima from the Center For Computational Relativity and Gravitation. Gain valuable knowledge about the intersection of physics, mathematics, and computer science in understanding the behavior of spacetime and gravitational waves. Discover the latest advancements and applications of Numerical Relativity in astrophysics and cosmology research.