This repository is primarily a collection of educational Jupyter notebooks and course materials accompanying the book 'Understanding Deep Learning' by Simon J.D. Prince. The content includes hands-on exercises implementing deep learning concepts from scratch, covering topics such as neural networks, optimization, convolutional networks, attention mechanisms, generative models, and reinforcement learning. The repository also contains a React-based website that serves as a frontend for the book, featuring sections for hero content, coding exercises, instructor resources, media, and further reading. While the website is a functional application, the dominant component is the educational notebook collection, which constitutes the majority of files and represents the core learning resource. The notebooks follow a consistent structure of theoretical explanations, code implementations with TODOs for students to complete, and visualizations to build intuition.