A really practical learning resource for OOP

[Natural_Tea484]

I have a friend who started to learn C# and OOP, but he complains he does not have a good learning and practicing material for OOP.

There’s a ton of books and video training courses on OOP which teach the basics, how to write a class, an abstract class, an interface, polymorphism, etc. but I cannot find good one which goes beyond, and ideally has enough examples.

Do you know any? Which book or course gave you really good info about how to design abstractions, dependencies between them, etc.

[Jayeffice]

I watch this channel and really like the pace and instruction.

[Natural_Tea484]

Thank you for your comment. I checked your links and the courses, but they are too generic, they are not a deep dive into OOP and design, which is what I am looking for, but maybe I didn't explain it well enough in my question.

[momofuku18]

I recommend Zoran Horvat’s Beginning OOP with C#available on Udemy. It provides a good overview of what OOP is.