Not too easy. Not too difficult.
It provides a skill that is very useful in all fields.
I created real, practical projects that used data visualization in tough but exciting ways.
Hours per week:
Advice for students:
Definitely take the time to start early when it comes to projects - there are so many bugs you can run into that you don't know how to fix last minute. Also be sure to be comfortable with researching bugs on your own, as it's up to you to determine how deep you want your understanding of d3 to be.