D3js is pretty verbose, but what you get is full control. Most charting libraries allow only a limited amount of configurability, which is neat if you just need

D3js is pretty verbose, but what you get is full control. Most charting libraries allow only a limited amount of configurability, which is neat if you just need to plot a basic chart quickly, but makes them awful if you want to make novel (or at least, more uncommon) kinds of visualisations or make non-standard changes to existing ones.