Once you have completed this computer based training course, you will have developed a solid working knowledge of D3, and be able to build your own data visualizations. Working files are included, allowing you to follow along with the author throughout the lessons.
http://www.uploadable.ch/file/M3ESRajbJwaP/Learning to Visualize Data with D3.js.part1.rar
http://www.uploadable.ch/file/BqY6X3BCsdrG/Learning to Visualize Data with D3.js.part2.rar
http://www.uploadable.ch/file/6dAMPmNncdy4/Learning to Visualize Data with D3.js.part3.rar