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 - [An Introduction to Quantum Computing](https://www.amazon.com/Introduction-Quantum-Computing-Phillip-Kaye/dp/019857049X/) - Strikes an excellent balance between accessiblity and mathematical rigour. It is suitable for undergraduate students.
 - [Classical and Quantum Computation](https://books.google.com.au/books/about/Classical_and_Quantum_Computation.html?id=TrMposZZ0MQC&redir_esc=y) - Introduction to fundamentals of classical and quantum computing.
 - [Dancing with Qubits](https://www.robertsutor.com/dancing-with-qubits/) - How quantum computing works and how it can change the world.
-- [Introduction to Classical and Quantum Computing](http://www.thomaswong.net/introduction-to-classical-and-quantum-computing.pdf) - Introductory quantum computing textbook. The only prerequisite is trigonometry, and it teaches the math along the way.
+- [Introduction to Classical and Quantum Computing](http://www.thomaswong.net/) - Introductory quantum computing textbook. The only prerequisite is trigonometry, and it teaches the math along the way.
 - [Learn Quantum Computation using Qiskit](http://community.qiskit.org/textbook) - An open-source textbook covering quantum algorithms and showing how to run them on real hardware using Qiskit. Also covers prerequisites.
 - [Learn Quantum Computing with Python and Q#](https://www.manning.com/books/learn-quantum-computing-with-python-and-q-sharp) - Introduces quantum computing using Python and Q#, Microsoft's new language for quantum programming.
 - [Problems and Solutions in Quantum Computing](https://www.worldscientific.com/worldscibooks/10.1142/6077#) - Easy to advanced quantum computing and information problems with detailed solutions.