For those seeking books that provide conceptual clarity in space-time physics alongside Schutz's General Relativity, Taylor and Wheeler's "Exploring Black Holes" is recommended as a sequel to "Spacetime Physics." A solid foundation in multivariable calculus is deemed sufficient for understanding Hartle's work, as he introduces tensor formulation gradually. Familiarity with tensors can be enhanced by reviewing relevant chapters in Boas. Schutz also covers necessary concepts early on, making it accessible for self-study. Additional resources suggested include "A Traveller's Guide to Spacetime" for special relativity and "The Einstein Theory of Relativity" by Lillian Lieber, which offers a basic introduction to tensors and covariant differentiation. These texts collectively support a comprehensive understanding of the subject matter.