Explore the fundamentals of autoencoders in this 21-minute Python tutorial. Learn how these artificial neural networks compress and reconstruct data, with applications in denoising, image colorization, and anomaly detection. Follow along as the instructor guides you through building an autoencoder to compress and reconstruct an input image, covering topics such as architecture, image importing, model fitting, and result visualization. Gain hands-on experience with a practical example using the Mona Lisa painting, and access the complete code on GitHub for further experimentation.