Python for Data Analysis, Wes McKinney, 2022 (O'Reilly Media) - A foundational text for data science in Python, providing detailed explanations of NumPy arrays, vectorized operations, broadcasting, and performance considerations. 3rd edition.
High Performance Python: Practical Performant Programming for Humans, Micha Gorelick, Ian Ozsvald, 2020 (O'Reilly Media) - Offers practical strategies for optimizing Python code, with specific sections dedicated to NumPy and its underlying mechanisms for achieving high performance. 2nd edition.
numpy.einsum documentation, NumPy Developers, 2024 - Official documentation detailing the einsum function, including its syntax and examples for complex tensor operations.