So, you are interested in Data Science and you have come across this free course offered by WQU and you are evaluating whether this course might be worth your time. In this post I will share my experience from having taken this course six months ago. WQU shared a list of key skills which are used on this course which can be found here. At first, the course starts with basic concepts of programming such as: defining variables, data types, loops, functions, classes, etc. It then builds on these core concepts and introduces key packages such as NumPy and Pandas which have ready made modules to read in data. I would say that the rest of module 1 can be summarised in transforming this data and querying it; it’s no coincidence that WQU put ‘Data Wrangling’ at the top of the skills list.