Kieran Healy

kieranhealy.org

Trump Tourism Effects

In the past day or two on social media I kept seeing this graph from a Semafor story on the declining volume of international visitors to the United States. Semafor Graph. It seems to show, and was being remarked on as showing, that the second Trump administration has been responsible for a drop in visitors from abroad from some countries on a scale comparable to the effects of the Covid-19 pandemic. My first thought was “that can’t be true”. And indeed it is not true. I mean, the pandemic shut

kieranhealy.org

Steven Lukes, The Diversity of Morals

In August I was a discussant on a panel about Steven Lukes’s recent book, The Diversity of Morals. Here’s an extended version of what I said. A PDF version is available as well. The Diversity of Morals asks the questions philosophers ask about morality: what is “the moral”? How wide and deep is its diversity? Is there a standpoint from which we can make our judgments? It then refuses to answer them by philosophical methods alone. Instead, it draws on the resources of both social theory and the s

GitHub - SeanFDZ/macmind: Single-layer transformer in HyperTalk for the classic Macintosh

Single-layer transformer in HyperTalk for the classic Macintosh - SeanFDZ/macmind

Data Visualization

A Practical Introduction

The radical reasons why you dream of making things by hand | Aeon Essays

Is all the beekeeping, baking and leatherwork just escapist fantasy or the start of a radically human approach to work?

kieranhealy.org

Using Quarto to Write a Book

I’ve spent the last couple of months revising my Data Visualization book for a second edition that, ideally, will appear some time in the next twelve months. As with the first edition, I’ve posted a complete draft of the book at its website. The production process hasn’t started yet, so it’s not ready to pre-order or anything, but the site has a one-question form you can fill out that asks for your email address if you’d like to be notified with one (and only one) email when it’s available. A lo

kieranhealy.org

The Baby Boom Again

Prompted by a local data visualization event, I revisited my old “Visualizing the Baby Boom” poster and added a few things to it. The additions are there to add a little extra context and to bring out some relevant comparisons. There are new rows showing snapshots of the country’s population pyramid every ten years between 1935 and 2015, to show the boomer cohort moving up through the population’s age distribution. Following on from some discussion on the socials with Gina C. Pierters and Carl S

Computational Complexity: Tony Hoare (1934-2026)

kieranhealy.org

New York City Hexmaps

The five boroughs of New York City can be informally or formally carved up into many different pieces, depending on what it is that you’re doing. As part of an ongoing project, I recently made an R package, nycmaps, that lets you draw maps of some of these geographies. Things being what they are, these spatial units don’t necessarily overlap in compatible ways. City, State, and Congressional Districts, School Districts, Police Precincts, Fire Companies, Election Precincts, Municipal Court Distri

kieranhealy.org

Hourly Subway Station Flows

Pie charts are bad, as any fule kno. We’re not as good at judging relative differences between angles and areas as we are at judging relative differences in lengths on a common baseline. This is especially true when we have more than two things to compare at the same time. So, as a rule, you shouldn’t use them. You should figure out some other way of viewing your data instead. On the other hand, I just made 424 animated pie charts because if you’re going to break a rule you should break it good

sixcolors.com

Charting the vibes in the 2025 Apple Report Card – Six Colors

Six Colors by Jason Snell, Dan Moren and friends

Ima Hogg - Wikipedia

kieranhealy.org

Subway Sign

After the parking signs last time, here is a subway sign. A borough-specific sign to display Here’s a direct link to the PNG and the PDF. Once again, put it onna stick and exercise the constitutional rights to freedom of expression, speech, and assembly enjoyed by everyone in the United States.

A collection of sf objects and related tibbles for making maps of New York City

Simple features boundary files for New York City across various administrative and Census geographies.