FREE Data Visualization Help

Hey there, a front-end developer by day here. I did some interactive data visualization work as part of my last project and I LOVED it. Being exposed to this new kind of work was both painful and exciting and left me craving for more. This brings me to my proposition: let me help you with your data visualization needs for practice. This includes everything chart- and map-related. The tool set I want to explore is D3 and JavaScript, but let's be flexible, shall we? :)