Find Logan on Twitter: https://twitter.com/OfficialLoganK
If you run into any technical issues during the course, please open an issue here: https://github.com/JuliaAcademy/DataScience so we can address it. This will be faster in most cases than asking your question in the comments.
Have further questions? Please post them on Discourse (https://discourse.julialang.org) where the whole Julia community can chime in as the response time on comments may be slow.