Design patterns InfoShare Factory method https://www.infoshareacademy.online/products/python-wtajemniczenie/categories/2148938725/posts/2152632867 Refactoring Guru https://refactoring.guru/design-patterns/python Architecture Patterns with Python https://learning.oreilly.com/library/view/architecture-patterns-with/9781492052197/ https://github.com/cosmicpython/book/tree/master https://www.cosmicpython.com/ https://www.cosmicpython.com/book/preface.html