This spring Columbia University is offering another course on Data Science. This one is targeted at introductory graduate students in math, and it is not intended to be an advanced machine learning course. The goal is to expose people with strong mathematical skill to some of the ideas from software development and machine learning without sacrificing the statistical theory. The course is title, Columbia Applied Data Science. The link for lecture notes(PDF) provides a great tutorial for beginning topics in data science. The lecture notes are currently still under development.