I am a Data Science Guy, freelance designer, and data analyst with 3+ years of corporate experience working in global big 4 and consulting firms. And I have sound knowledge of widely used analysis tools such as excel, R, SAS, SQL, etc.  And I have worked with a great number of clients from around the world professionally as a freelancer. So I think I can share my knowledge and experience here and enrich learners with great skill sets here and learn something new from them.