Neural Networks and Deep Learning (neuralnetworksanddeeplearning.com)

A free online book titled "Neural Networks and Deep Learning" is now available to teach the fundamentals of neural networks and modern deep learning. The text frames neural networks as a biologically inspired programming paradigm that enables computers to learn from observational data, and presents deep learning as a powerful collection of techniques for training those networks. The author promises a practical grounding in many of the core concepts behind neural networks and deep learning, and readers can jump straight into Chapter 1 to get started. This resource is significant because neural networks and deep learning currently deliver state-of-the-art results across core AI domains—image recognition, speech recognition, and natural language processing—so a focused, accessible introduction helps both newcomers and practitioners build the foundations needed to understand and apply these methods. By covering the conceptual underpinnings and learning-based approach, the book equips readers to grasp why deep models work, when to use them, and how they relate to real-world data-driven problems. As a free, entry-level guide, it’s a practical first stop for anyone looking to move from theory to applied ML.