A robust discussion centers around recommended books for learning Tensor Analysis, particularly for those with a background in calculus, differential equations, and complex variables, aiming to advance into fields like Relativistic Physics and Quantum Mechanics. Key suggestions include "Tensor Analysis on Manifolds" by Bishop and Goldberg, praised for its comprehensive coverage and modern approach, though it requires some familiarity with topology and advanced calculus concepts. Other notable mentions are "Geometrical Methods of Mathematical Physics" by Schutz and "General Relativity" by Wald, all available for under $40. The conversation highlights the importance of a solid mathematical foundation to fully grasp the material and the preference for modern, abstract definitions over traditional, physics-based explanations in understanding tensor analysis.