The Learn APL with Neural Networks YouTube series aims to teach you APL while building a basic machine learning framework from first principles. By the end of the series you will have created a machine learning framework and used it to train a neural network that recognises handwritten digits. The flexibility of what you have created will mean that you are also able to tackle other problems. Dyalog Basics: Namespaces in Dyalog is an introduction to namespaces, including what they are, why they’re useful, how to create and use them, the system function ⎕NS, the root namespace #, the namespace ⎕SE, and namespace references. APL Seeds was a series of events aimed at new and prospective users of APL. Each event comprised brief overviews of the language, introductions to available resources, and demonstrations of real-world applications using APL. Recordings of the presentations (and downloadable materials) are available.