Object-oriented programming Courses
Coursera Instructor Network via Coursera Python for Programmers: Python Concepts in Practice
PyCon US via YouTube Zend Db Deep Dive
Pluralsight Ruby Beyond the Basics
Pluralsight Learning To Program - Part 2: Abstractions
Pluralsight Object-oriented PHP: Classical Inheritance Model
Pluralsight Object-oriented Programming in JavaScript - ES6
Pluralsight Functional Programming Is No Better than Object-Oriented Programming
GOTO Conferences via YouTube Python Object-Oriented Programming - Full Course
Bro Code via YouTube Learn TypeScript - Full Course for Beginners
freeCodeCamp