<p>The Second Edition of <i>Quantum Information Processing, Quantum Computing, and Quantum Error Correction: An Engineering Approach</i> presents a self-contained introduction to all aspects of the area, teaching the essentials such as state vectors, operators, density operators, measurements, and dynamics of a quantum system. In additional to the fundamental principles of quantum computation, basic quantum gates, basic quantum algorithms, and quantum information processing, this edition has been brought fully up to date, outlining the latest research trends. These include: </p><p>Key topics include:</p><ul><p><li>Quantum error correction codes (QECCs), including stabilizer codes, Calderbank-Shor-Steane (CSS) codes, quantum low-density parity-check (LDPC) codes, entanglement-assisted QECCs, topological codes, and surface codes</li><li>Quantum information theory, and quantum key distribution (QKD)</li><li>Fault-tolerant information processing and fault-tolerant quantum error correction,