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Heather Bree

Data Visualization Specialist

Senior front-end web developer, with specialities in svelte, d3.js, leaflet.js and react. Data analysis chops in python. Civic data nerd.

I work at GovEx

Some Examples of My Work There:

screenshot of a world choropleth map

JHU Coronavirus Resource Center

I added lots of custom D3.js data visualizations to the react-based Coronavirus Resource Center website.

screenshot of an air quality level timeline

BREATHE Center Lung Health Report

I built a vanilla javascript scrollytelling website for the JHU BREATHE Center's report on Baltimore lung health.

screenshot of a world choropleth map

City Data Explorer

I am a senior developer on the Bloomberg Center for Government Excellence City Data Explorer project, providing most of the custom D3.js visualizations in the react-based website.

Some Examples of My Work Elsewhere:

screenshot of a sankey diagram

PDX Rank Choice Voting

I wrote a scrollytelling article using svelte and layercake analyzing the 2024 Portland Mayoral Race and how ranked choice voting worked in that election.

screenshot of an air quality level timeline

My Life Graph

I built a force-directed node diagram of my life in svelte. It's got lots of little easter eggs and you'll learn more than you wanted to know about me.

screenshot of a audio player with waveform illustration

Data Sonification Project Prototype

I mentored an intern who helped me build a data sonification prototype for turning some data from the City Data Explorer into sound.