Data joins in D3 can be a tricky thing to wrap your mind around, but once you do, you can take your visualizations to the next level with animations. Data joins are a core concept in D3, so it's a good idea to get acquainted with them.

Pictograms have been around for a long time, and with good reason. They are interesting and engaging, and might even help your audience to remember the information better. In this post we will build a pictogram grid in D3.js.

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