Why doesn't Dataquest use videos?

We found that student engagement suffered — to reinforce further our decision to move away from video-based learning, we discovered that many academic studies highlighted its numerous pitfalls. Video-based learning is more "passive" — it's straightforward to think you understand a concept after watching a 2-hour video, only to freeze up when you have to put what you've learned into action.

In conjunction with a heavy dose of interactive exercises (i.e., learning by doing), we think that text is key for knowledge retention and building mastery. It's also much easier to refer back to text/diagrams when writing code than to skip to the part of a video where that concept was discussed.