Thanks for creating these videos. They are a GREAT resource.<p>For anyone looking to learn d3.js, I would highly recommend starting with the video tutorials by enjalot (the above linked or dot enter vol. 1). He does a great job of walking through how each visualization works.<p>Additionally, tributary (<a href="http://tributary.io/" rel="nofollow">http://tributary.io/</a>) is perfect for playing with d3.js.