No, you do not need any additional materials or books to successfully complete the "Practical Realities of Quantum Computation and Quantum Communication" course. All the necessary course materials will be provided within the course.
However, if you are interested in exploring the content further, the course may provide links to additional readings for those who want to delve deeper into the subject. These additional readings are optional and not required for completing the course.
There is no required book for the certificate program, meaning you can complete the course without needing to purchase any specific textbooks or reference materials. The course materials and resources provided within the course itself should be sufficient for your learning and successful completion of the program.