About EagerEyes

EagerEyes is Robert Kosara’s place to reflect on the world of information visualization and visual communication of data. The goal is to help digest things that are happening in the field and discuss new developments. The audience has always been both the academic community and anybody with an interest in visual communication with data: practitioners, artists, designers, etc.

The Site

This is really a personal blog, even though I always wanted to make sure that the posts have lasting value. A handful of posts haven't aged well (which are now archived, see below), but the majority should be as relevant as on the day they were published – even if that's 10, 15, or 20 years ago.

EagerEyes has gone through a number of reorganizations and platform changes. In the most recent one (March 2026), I marked posts that seemed outdated as archived. They are still on the site, but they are hidden by default in lists. They can be shown with a button at the top of the list (they also show up in searches).

I've created (or I should say, Claude Code has…) a new system for submitting comments. We'll see if people are going to submit comments, after all things have changed quite a bit since the heyday of blogging in the early 2000s and 2010s. But it's a worthwhile experiment, if only because the implementation is kind of interesting.

You can subscribe to the site using the feed and an RSS reader, or you can subscribe to receive emails when new posts go live.

You can also follow me on BlueSky, where I post whenever I add anything here.

The Author

Robert Kosara is Technical Communicator at Metabase. Prior to Metabase, Robert was Data Visualization Developer at Observable (2022-2025), Lead Research Scientist at Tableau Software (2012-2022), and Associate Professor of Computer Science at UNC Charlotte (2005-2012). He has created visualization techniques like Parallel Sets and performed research into the perceptual and cognitive basics of visualization. Recently, Robert’s research has focused on how to communicate and collaborate with data, and how storytelling can be adapted to incorporate data, interaction, and visualization.

Robert received his M.Sc. and Ph.D. degrees in computer science from Vienna University of Technology (Vienna, Austria).

Contact

Robert can be found on BlueSky, github, YouTube, LinkedIn, and Google Scholar. His list of publications is available here.

Content License

All original content on this site is licensed under a Creative Commons CC-BY-4.0 license:

This license requires that reusers give credit to the creator. It allows reusers to distribute, remix, adapt, and build upon the material in any medium or format, even for commercial purposes.

Legal Disclaimer

EagerEyes is Robert’s personal site and not affiliated with Metabase, Observable, Tableau Software, Salesforce, UNC Charlotte, or any other entity. The postings here are based on my own opinions and views, and do not reflect those of my employer or anybody else.