# Friday Picks 038

- NSA just declassified their python training documents - a massive PDF for learning Python
- Immutable JavaScript Data Structures with Immer - a free video course by egghead.io
- Mathematics For Machine Learning - covers mathematical concepts for machine learning (free PDF)
- nand2tetris - a course on how to build a general-purpose computer system from scratch
- Containers aren’t magic - a useful mini-explanation by Julia Evans

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