Which type of course is best for business?

A new language, coding, designing, art, cooking — things you would normally expect to pay for – are all available online for free.

Learn for Free. Develop new business skills and insights through free, interactive lessons and downloadable e-books. Now is the perfect time to advance your career with HBS Online’s free online business lessons and e-books . Explore how you can learn for free online, on your own time, anywhere in the world.

How to Create an Online Course for Free

Based on our findings, here are the 20 business fields with the best potential ROI: