Neural Networks and Deep Learning by Michael Nielsen

Neural Networks and Deep Learning is a free online textbook and interactive learning resource created by Michael Nielsen that provides a thorough introduction to neural networks and deep learning. The book combines theoretical foundations with practical, hands-on code examples written in Python, making complex concepts accessible to learners at all levels. It covers fundamental topics including perceptrons, backpropagation, convolutional networks, and modern deep learning techniques. The resource is notable for its clear explanations, interactive visualizations, and educational approach that emphasizes understanding over memorization. It serves as both a self-paced learning tool and a reference guide for students, educators, and professionals looking to build a solid foundation in deep learning before advancing to more specialise frameworks and applications.