Learn Data Science for free in 2021 - KDnuggets

I will discuss all these fields and the best online courses to get started. A good data Scientist is well versed in programming, especially in Python or R as these languages are top data science languages. Google Trends: Blue is Python, Red is R. We can see that there is a great worldwide interest in the Python programming language as compared to R, so I would advise a beginner to start learning and getting a good grip on Python. You should start by learning the basics of Python via the Sentdex YouTube channel. He has a great series for beginners.