What are the best books on special relativity for someone looking to deepen their understanding of the subject?

Some of the best books on special relativity for deepening understanding are "Spacetime and Geometry: An Introduction to General Relativity" by Sean Carroll, "Special Relativity and Classical Field Theory: The Theoretical Minimum" by Leonard Susskind and Art Friedman, and "Introduction to Special Relativity" by Wolfgang Rindler.