Learn with context. Practise with purpose.

Connected learning

Chezur is a project by Jaime Castillo connecting explanations, examples, practice and review. The library begins with foundations and lets you explore a specific question without losing the full path.

Market pages explain instruments; news links facts to sources; resources help document a process. The NQ example uses synthetic data and illustrative trades. Each part explains what you can actually do.

Progress you can explain

Learning appears in how you prepare a question, complete an exercise and recognise its limits. One simulated result does not summarise that process. Lessons and practices therefore include review questions.