TOP 10 ONLINE FREE COURSES....

Short but informative

1. Harvard University's Introduction to Computer Science - This course teaches the fundamentals of computer science, including programming and algorithmic thinking. Link: https://online-learning.harvard.edu/course/cs50-introduction-computer-science 

2. MIT's Calculus 1A: Differentiation - This course teaches calculus and the concept of differentiation. Link: https://ocw.mit.edu/courses/mathematics/18-01sc-single-variable-calculus-fall-2010/index.htm

3. Yale University's The Science of Well-Being - This course teaches practical strategies for increasing happiness and well-being. Link: https://www.coursera.org/learn/the-science-of-well-being

4.Stanford University's Machine Learning - This course teaches the basics of machine learning and algorithms. Link: https://www.coursera.org/learn/machine-learning

5. Johns Hopkins University's Data Science Specialization - This course teaches the tools and techniques for analyzing large datasets. Link: https://www.coursera.org/specializations/jhu-data-science

6. Duke University's Introduction to Probability and Data - This course teaches the basics of probability and statistics using real-world examples. Link: https://www.coursera.org/learn/probability-intro

7. University of Michigan's Programming for Everybody (Python) - This course teaches the fundamentals of programming using Python. Link: https://www.coursera.org/learn/python

8. University of Pennsylvania's An Introduction to Corporate Finance - This course teaches the basics of corporate finance, including financial statements and capital budgeting. Link: https://www.coursera.org/learn/corporate-finance-essentials

9. University of California, Irvine's Learning How to Learn - This course teaches the science of how we learn and provides practical strategies for effective learning. Link: https://www.coursera.org/learn/learning-how-to-learn

10. University of Tokyo's Introduction to Japanese Subcultures - This course teaches about Japanese subcultures such as anime and manga, and their impact on modern Japanese society. Link: https://www.coursera.org/learn/japanese-subcultures