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Mike Bostock
@mbostock
Visualization toolmaker. Founder @observablehq. Creator @d3js_org. Former @nytgraphics. Pronounced BOSS-tock.
San Francisco, CA
observablehq.com/@mbostock
Joined December 2006
9
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60.5K
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    Mike Bostock
    @mbostock
    Sep 10, 2025
    Observable Notebook Kit and Desktop 1.3.0 are out, featuring data loader cells. You can now (finally!!) write Python and Node.js in notebooks. 🐍 observablehq.com/notebook-kit/d…
    Editing a notebook in Observable Desktop: a Python cell generates a synthetic daily temperature dataset using numpy and pandas, which is then output as CSV; the data is then visualized as a line chart with Observable Plot.
    11K
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    Mike Bostock
    @mbostock
    May 2, 2023
    Updated my plot of bank failures. 😬 observablehq.com/@mbostock/bank…
    2.9M
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    Mike Bostock
    @mbostock
    Jun 2, 2018
    LaTeX is so much better when you have emoji.
  • user avatar
    Mike Bostock
    @mbostock
    Feb 23, 2021
    It’s been ten years since I pushed the first release of D3.js to GitHub. Have I learned anything? I hope so… but it’s a journey.
    10 Years of Open-Source Visualization
    From observablehq.com
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    Mike Bostock
    @mbostock
    Jun 28, 2016
    After 12+ months and ~4,878 commits, I am excited to announce the release of D3 4.0! github.com/d3/d3/releases… 📊📈🎉 #d3js
    Release v4.0.0 · d3/d3
    From github.com
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    Mike Bostock
    @mbostock
    May 4, 2021
    Announcing a new open-source JavaScript library for exploratory data visualization: Observable Plot!
    Observable Plot
    From observablehq.com
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    Mike Bostock
    @mbostock
    May 4, 2015
    I’m leaving @nytgraphics to work full-time on visualization tools! 💥
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    Mike Bostock
    @mbostock
    Apr 28, 2017
    Introducing d3.​express: the integrated discovery environment.
    A Better Way to Code
    From medium.com
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    Mike Bostock
    @mbostock
    May 2, 2018
    Don’t compare percentage change on a linear scale; use a log scale instead. -50% (0.5×) is as big a change as +100% (2×).
  • user avatar
    Mike Bostock
    @mbostock
    Jun 18, 2018
    Lovely animation of hierarchical clustering by @r2d3us! r2d3.us/visual-intro-t…
    GIF
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    Mike Bostock
    @mbostock
    Mar 22, 2018
    D3 5.0 is out! 🎉 Here’s a summary of what’s new:
    d3/CHANGES.md at main · d3/d3
    From github.com
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    Mike Bostock
    @mbostock
    Jan 28, 2018
    D3 5.0 prerelease! 🎉 Adds contours, density estimation, ColorBrewer color schemes and adopts Fetch for loading data.
    Release v5.0.0-rc.1 · d3/d3
    From github.com
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    Mike Bostock
    @mbostock
    Jun 8, 2017
    Hours of daylight as a function of latitude and day of year.
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    Mike Bostock
    @mbostock
    Dec 17, 2018
    Yes, you should use D3.
    Why you should use D3
    From medium.com