❯ Python http://freecodecamp.org/learn/scientific-computing-with-python/…
❯ SQL http://openclassrooms.com/courses/2071486-retrieve-data-using-sql…
❯ R http://mygreatlearning.com/academy/learn-for-free/courses/r-for-data-science…
❯ Excel http://simplilearn.com/learn-business-analytics-excel-fundamentals-skillup…
❯ PowerBI http://openclassrooms.com/courses/7434291-create-dashboards-with-powerbi…
❯ Tableau http://openclassrooms.com/courses/5873606-create-dashboards-with-tableau…
❯ Mathematics & Statistics http://matlabacademy.mathworks.com
❯ Probability http://mygreatlearning.com/academy/learn-for-free/courses/probability-for-data-science…
❯ Data Analysis http://cognitiveclass.ai/courses/data-analysis-python…
❯ Data Visualization http://cognitiveclass.ai/courses/data-visualization-python…
❯ Data Cleaning http://kaggle.com/learn/data-cleaning…
❯ Machine Learning http://simplilearn.com/learn-machine-learning-algorithms-free-course-skillup…
❯ Deep Learning http://kaggle.com/learn/intro-to-deep-learning…