Linear Algebra Practice Workbook for UPSC Mathematics Optional by Prabhash Kumar is a meticulously designed practice resource tailored for aspirants of the UPSC Mathematics Optional subject. Unlike conventional textbooks, this workbook focuses entirely on problem-solving, offering a structured set of questions with step-by-step solutions aligned with the UPSC syllabus. Covering all core topics—from vector spaces and linear transformations to eigenvalues, matrices, and Cayley-Hamilton theorem—it transforms concepts into mastery through rigorous practice. With clarity, exam-orientation, and accuracy at its heart, this workbook serves as a reliable companion for aspirants seeking to strengthen their mathematical foundation and boost performance in one of the most decisive optional subjects.