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Tim Prestby

@timprestby.bsky.social
420 followers 73 following 20 posts

Assistant Professor of Applied GIS at James Madison University | NSF GRF | CaGIS, Journal of Maps Editorial Board | Formerly: Penn Stater, Cartographer at Apple, UW Cart Lab, UW Geospatial Data Science Lab

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Reposted by Tim Prestby
Richard Delevan @richard.wickedproblems.earth · 23/09/2026
Really good Bloomberg package on the AI data centre impact on urban heat island effects in the US, with exhaust heat raising temps up to 4ºF (2.25ºC) higher up to 1/3 mile away from the data centre. One more driver to 70% US opposition to data centres. Gift link: www.bloomberg.com/graphics/202...
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Tim Prestby @timprestby.bsky.social · 18/09/2026
Oh this is COOL. Just talked about projections with my cart class but I will show this as a nice review.
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Tim Prestby @timprestby.bsky.social · 22/01/2026
Ahhh the FT give it a go was referring to helping the white house. I understand! Thanks for the clarification. Yeah... that sounds about right
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Tim Prestby @timprestby.bsky.social · 21/01/2026
Genuinely confused, are you saying this because the FT didn't quote you in the article or use maps from your books? They seemed to have explained a pretty fundamental cartography concept well.
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Tim Prestby @timprestby.bsky.social · 19/01/2026
That's a wrap! My third and final study from my dissertation is now published open-access in the journal of information visualization! Check it out here: doi.org/10.1177/1473.... I now have no publications in the pipeline...time to get back to writing 😎.
doi.org
Sage Journals: Discover world-class research
Subscription and open access journals from Sage, the world's leading independent academic publisher.
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Tim Prestby @timprestby.bsky.social · 12/01/2026
Flash back to your seminar on AI! Love it!
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Tim Prestby @timprestby.bsky.social · 05/01/2026
It's been 7 years since I first took my intro cartography class with @roberteroth.bsky.social. For readings, I enjoyed the GIS&T BoK entries from @ucgis.bsky.social. Things have come full circle. Stoked to share that my own BoK entry on "Map Interpretation" is now published doi.org/10.22224/gis...
doi.org
UCGIS Bok Visualizer and Search
This Body of Knowledge documents the domain of geographic information science and its associated technologies (GIS&T). By providing this content in a new digital format, UCGIS aims to continue support...
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Reposted by Tim Prestby
Tom Flood @tomflood.bsky.social · 16/10/2025
Enough. Awesome to see this billboard up in Vancouver. Was really incredible to work with the people at @visionzerovancouver.ca to bring this to life.
an outdoor blllboard There will never be a bell loud enough, a helmet strong enough, or clothing bright enough to make up for poor infrastructure. Picture of child biking in a painted bike lane
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Reposted by Tim Prestby
pennstategeography.bsky.social @pennstategeography.bsky.social · 14/04/2025
Congratulations to @timprestby.bsky.social who accepted a tenure-track position as Assistant Professor in Geospatial Information Science at James Madison University!
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Tim Prestby @timprestby.bsky.social · 14/02/2025
Yesterday was a special day. I successfully passed my dissertation defense yesterday and have been given the unofficial title of "Dr. Prestby" until graduation in May. Huge thanks to everyone at Penn State Geography, especially @arobinson.bsky.social for helping me achieve this milestone!!
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Reposted by Tim Prestby
Anthony Robinson @arobinson.bsky.social · 02/02/2025
We're hiring a new Assistant Teaching Professor for Penn State's online geospatial education programs: psu.wd1.myworkdayjobs.com/en-US/PSU_Ac...
psu.wd1.myworkdayjobs.com
Assistant Teaching Professor of Spatial Data Science
APPLICATION INSTRUCTIONS: CURRENT PENN STATE EMPLOYEE (faculty, staff, technical service, or student), please login to Workday to complete the internal application process. Please do not apply here, a...
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Tim Prestby @timprestby.bsky.social · 03/02/2025
This is hilarious. I may have to use this image when referring to the article in a low-stakes professional meeting and see if anyone says anything 😂
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Tim Prestby @timprestby.bsky.social · 30/01/2025
I'll be defending my dissertation two weeks from now on February 13 at 2:00pm eastern time. There will be a ~20 minute public talk. If you are interested in joining via zoom, shoot me a message and I will share the link!
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Tim Prestby @timprestby.bsky.social · 10/01/2025
Sent off my complete dissertation draft to the committee today. Wow the last 3ish years have flown by. I'll be defending in a month's time on February 13 at 2pm ET. There will be a public hybrid presentation around 30 minutes long. Will share more details soon! (Sorry for cross posting on Twitter)
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Tim Prestby @timprestby.bsky.social · 18/12/2024
Gorgeous
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Tim Prestby @timprestby.bsky.social · 17/12/2024
Does anyone know a great source for buying print maritime maps? Ideally from an individual cartographer/supporting a local business? I'd like to get one for a Christmas gift but don't know where to look.
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Tim Prestby @timprestby.bsky.social · 13/12/2024
This is extremely impressive. Wow.
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Tim Prestby @timprestby.bsky.social · 11/12/2024
Sorry was limited on characters so had to be concise at the expense of some details being omitted
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Tim Prestby @timprestby.bsky.social · 11/12/2024
@roberteroth.bsky.social brought you as a guest :)
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Tim Prestby @timprestby.bsky.social · 11/12/2024
It is a core cartographic memory of mine. Thankfully Daniel is great about documenting their design process through tutorials and other means, but the live in-person designing is a treat :). I blew my students' minds with holding shift to uniformly scale features in illustrator haha.
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Tim Prestby @timprestby.bsky.social · 11/12/2024
I went in to the class intent on making a map showing whether there were areas in San Francisco that had more 'tech bros' than families. We ended up leaning in to the 2024 trend of brat summer and making a more lighthearted project. Census data were single male households and couples households.
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Tim Prestby @timprestby.bsky.social · 11/12/2024
For my intro to cartography class, @pinakographos.bsky.social did a "Bob Ross Day" where they made a map live. It was invaluable to see how an expert approached the mapmaking process. I am teaching the intro cart class at PSU this year and did the same thing. My students and I had a blast 😄 (1/2)
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Tim Prestby @timprestby.bsky.social · 28/11/2024
Glad to see more people talking about trust and maps...
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Tim Prestby @timprestby.bsky.social · 21/11/2024
Officially making the transition to this app 😀
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