Data Science: Visualization is not an official DataCamp course. It is actually an edX course. It uses the DataCamp interface which is why it has a familiar look and feel. 

You must navigate directly to edX, not DataCamp, to access this course.

HarvardX has partnered with DataCamp for all assignments which allow students to program directly in a browser-based interface. Therefore, courses like this one are not found in DataCamp's course library, and can only be accessed through edX. Additionally, DataCamp statements of accomplishment or certificates are not available for this course.

If you would like to check out similar courses directly in the DataCamp interface, you may be interested in one of following: 

• Data Visualization with R Track
• Data Visualization with ggplot2 (Part 1)
• Data Visualization in R with lattice
  

By the end of these courses, you will have all the tools needed to do things like creating custom plotting functions and explore large datasets.