This video of @hankgreen.bsky.social crashing out for 30 straight minutes over graph manipulation & rhetoric makes me feel very seen: www.youtube.com/watch?v=kSgD...

I travelled 27 hrs, fought endless visa issues to give this talk for our award-winning paper at #CHI2026. Your turn to show up 📍 P1, Room 112, Apr 15 (Wed), 12 noon. But why? I wish the didn't impact every knowledge worker. Sadly, it does, and we need to talk about it. 1/n

If you're interested in pursing a teaching-focused academic career in computing, make sure to check out the (online) workshop series that @peck.phd and I will be running in May!

After attending 10 of 11 @acm-sigchi.bsky.social CHIs from 2009-2019, I'm going for the first time in 7 years next week; now with a new rank, new institution, new lab, and new gray hairs. Feel free to send me a DM/email. I'm eager to reconnect with folks I haven't seen in too-long #chi2026

WTF does this mean, past-Evan?

Since I'm using Ziptable to share data in my own class, I made a small change a couple of days ago to make my instructor flow better You can now filter columns to reduce dataset size, share shorter links, or choose targeted exports (e.g. to Datawrapper) Orig 🧵 on Ziptable: bsky.app/profile/peck...

A quick update to ziptbl.com: you can now open shared data directly in @datawrapper.de! The video shows the full flow: load data into Ziptable > share the link > create a 📊 in Datawrapper As always: the data stays off any servers until you send it to Datawrapper - it's just compressed in the url

Holy smokes - thanks for all the ZipTable love! A small update: - 🗺️ GeoJSONs! Share geo data and open it directly in geojson.io (vid) - Better sharing guidance based on link length (email vs. Slack vs. SMS) - Faster! Only 65 KBs on 1st load now. Repeat visits are ~3.5 KB. That's dial-up modem fast 😂

I made a tiny tool for quickly sharing small datasets (< ~1000 rows) without uploading any data to a server. 🔗 ziptbl.com It compresses the data into the link itself, so there’s no account, hosting, or storage layer involved. Here's Florence Nightingale's famous 📊 data: ziptbl.com#d=eNpdlE-LGz...

Data/design folks, what is your favorite visual that focuses on the human cost of violence, tragedies and disasters? The most emotionally impactful visualization? The most visually striking? Please share! I'd like to get as many examples as possible.

It's (finally) getting easier to produce accessible PDFs with LaTeX in Overleaf: www.overleaf.com/blog/accessi...

Olympic medals are a good place to play with the Emojicon Creator I made last year: emojicon-creator.netlify.app 20 USA medals: 6 x 🥇, 9 x 🥈, 5 x 🥉: 🥇🥇🥇🥇🥇🥇🥈🥈🥈🥈 🥈🥈🥈🥈🥈🥉🥉🥉🥉🥉 or 🥇🥇🥇🥇🥇🥇 🥈🥈🥈🥈🥈🥈🥈🥈🥈 🥉🥉🥉🥉🥉

I'm all for creating engaging visuals to capture attention, but I have mixed feelings about interactives that seem to use the visual language of charts to imply more data than is represented. I don't get much from the interaction, but maybe more people will read? 🔗 www.nbcnews.com/politics/jus...

An interesting 📊 choice from ESPN's Olympic medal coverage. By giving each country its own axis-range, the bar for USA's 8 silver medals is the same height as Norway's 12 gold. If you're trying to compare countries at a glance, USA's bars are all bit taller than they should be.

Two snowpack maps, similar data, very different vibes. In my vis courses, I always talk to my students about how color associations can manipulate the story of a visualization. This is a great, recent (and local!) example.

another look at this generational chart crime

I've been running a new vis course this semester that empowers students to invest in the vis tools, topics, practices that best align with their careers. Having a set of well-crafted resources like this to pass on is wonderful.

I lost my job, my kids have measles, and masked secret police roam our streets murdering civilians and abducting the witnesses. But at least now we have full sovereignty over a couple of military bases in Greenland.

I love how this graphic is totally unhelpful for determining whether you're going to get 30 inches of snow or half an inch of ice.

(the game is currently 24-21 with 6 minutes left, and Toney has 115 yards)

Given its quality + faithfulness to source material, I'm still not over The Odyssey going to Christopher Nolan instead of the Muppets

NSF is about to dismantle NCAR at Russell Vought's direction to protect the fossil fuel industry. It's hard to communicate just how much NCAR does, so let's take a look: I've never worked at NCAR, and I've worked with NCAR researchers once ever. What scientific discoveries has NCAR made possible? 👇

If you can't find me, I'm the one home sick 😷. It has been such a great semester together, and we're excited to share some of our ongoing research next year with you!

the @data-and-design.org and information visions (@peck.phd) labs celebrated the end of the semester together yesterday! thanks for a great 2025!

#CHI2026 Student Mentoring Program is open for applications: chi2026.acm.org/authors/stud... with a brand new program: (1) CHI 101 (2) Building a Research Cohort (3) Dissertation Research Roundtable Deadline: 22 Jan! RT friends of @acm-sigchi.bsky.social @chi.acm.org

These are the kinds of example I love discussing with students. What does a city with 19.5%🔴 the workforce look like vs. a city with 20.1%⚫ of the workforce? 🤔 (I feel like I'm picking on the Economist a lot, but their charts consistently get promoted to me + glitch my brain)

I'll always donate part of my day to a good optical illusion, so here are a whole bunch of them: optical.toys

Not the first time that Anthropic has used truncated bar graph axes to visually exaggerate their performance vs competitors. 🔗 x.com/claudeai/sta...

This has been such a lovely way to start class in my vis course over the past few weeks.

Humans are bad at big numbers. Which makes it easier for billionaires (and trillionaires) to get away with hoarding wealth. Because most people just can't comprehend how much money that is. So, I appreciate this WaPo effort to help people visualize what ridiculous amounts of wealth really mean.

My new big visualization project is out: The Trans News Initiative, a collaboration between UM's School of Communication, the Trans Journalists Association, and Polygraph (The Pudding): transnewsinitiative.org Here's a piece about it in the Columbia Journalism Review: www.cjr.org/news/visuali...

My life can be summed up as "same logo, different colors" 🦬 I grew up in upstate NY (giant Bills fan) 🦬 I was a CS prof at Bucknell for almost 10 years 🦬 I am now an Info Sci prof at CU Boulder

I'm not proud to tell you that I clicked this Wirecutter article fully believing it was about the 📊 Best Bar Charts.

Can someone tell me what is going on with @economist.com's graphic department? This title also has nothing to do with the plotted data. Are they using charts as clickbait for the article?

Started a thread in the other place and bringing it over here - I really think we should be more vocal about the opportunities that lay at the intersection of these two options! So I'm starting a live thread of new roles as I become aware of them - feel free to add / extend / share :

Rare baseball post: I grew up going to Montreal Expos games, and Vladimir Guerrero my all-time favorite ballplayer. Its surreal to see his son, Vladdy Jr., now fill the baseball headlines.

Bumping this because many of us can individually contribute clarity even when facing great uncertainty from the systems around us.

Today @urbaninstitute.bsky.social launches a new data tool: The American Affordability Tracker. We're collecting data that tracks the rising costs of a secure lifestyle, and indicators of financial distress that are contributing to a growing crisis. See the data here: www.urban.org/data-tools/a... 📊

This graph that the @economist.com is boosting on Facebook is irresponsible. Titles create powerful frames in the way people interpret data (see: Kong et al 2019, www.hidykong.com/papers/Kong-...). This one tells a story that doesn't exist in the charted data.

The static proportions of this chart were totally reasonable until today 😮

My town needs an intervention. What if I told you all these charts came from just the first 5 pages of our monthly sales tax update? 😱 🔗 www.erieco.gov/ArchiveCente...

In an effort to be constructive (and not just critique), here are some quick redesigns based on the available data: evanpeck.github.io/design/erie2...

Guess how many colors are in the legend for this budget chart from my town. (see replies for answer)

All kinds of color associations going on in this choropleth. I think of red as either a high value (vis associations) or incredibly colorful leaves (tree associations). Here, it means "still nice, but declining" leaf colors 🤔 (I still kind of love the fall colors style 🍁)

omg - this alt.vis paper about NASA-TLX was styled like the original NASA-TLX paper 😍 arxiv.org/pdf/2509.24643

We're hiring a TT faculty position in Environmental Justice & Information/Technology. I love our interdisciplinary & collegial department - come join us or pass it onto someone who might! jobs.colorado.edu/jobs/JobDeta...

Given funding uncertainty, we wrote about why depts & faculty should try to communicate openly with PhD applicants about any changes to their admissions processes, including if it's "nothing has changed". Let's do what we can (when we can) to prevent cascading anxiety. cra.org/crn/2025/09/...

Listen, everyone's mad that ChatGPT 5 can't capture the full nuance of their discipline. But what about its potential to rapidly develop compelling, engaging visuals for education? It took me only a single prompt to create this emoji-based multiplication table for my child.

I feel terrible for the students described in this article, because they bought into the lie that they've been hearing from politicians for years - don't study humanities, study computers, and you will get a job. All these students did was listen to what we told them. www.nytimes.com/2025/08/10/t...

I learned about Bill Collins today, CU's 1st black football captain. This image captures Bill at the 1969 Liberty Bowl coin-toss, standing in front of an all-white, never-integrated Alabama team that brought 40 players to stand opposite him. ▶️ youtu.be/RBNX8L5RTIA?... 🔗 cubuffs.com/news/2025/8/...