Clean Code
Tell Don’t Ask - Learn to Talk to Your Objects
The Tell Don’t Ask principle explained with samples and Code Kata for you to train skills.
Clean Code
The Law of Demeter by Example
Learn the two rules of shy programming - The Law of Demeter explained with examples.
Clean Code
The OOP Has Been Explained Wrongly to Me
Years ago, when I was learning the basics of software development, I did not understand OOP correctly. It took me years to fix this mistake, so here is a start for you.