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Bio

The creator of [GrassrootsMapping.org](http://grassrootsmapping.org) and one of seven co-founders of Public Lab, Jeffrey Warren designs mapping and community science tools and professionally flies balloons and kites. He leads the coding community at Public Lab, and has developed [the vector-mapping framework Cartagen](http://cartagen.org) and [grassroots mapping tool MapKnitter](http://mapknitter.org), as well as open spectral database and toolkit [Spectral Workbench](http://spectralworkbench.org).

He served on the board of of the [Open Source Hardware Association](http://www.oshwa.org) for three terms from 2014-2020, and is an advocate of open source software, hardware, and data. He co-founded Vestal Design, a graphic/interaction design firm in 2004, and directed the Cut&Paste Labs project, a year-long series of workshops on open source tools and web design in 2006-7 with Lima designer Diego Rotalde.

Jeff holds an MS from MIT and a BA in Architecture from Yale University, and spent much of that time working with artist/technologist Natalie Jeremijenko, building robotic dogs and stuff. To find out more, visit Unterbahn.com.

* https://github.com/jywarren
* http://unterbahn.com
* http://unterbahn.com/thesis/
* http://instagram.com/unterbahn

Photo by [ChristopherVillafuerte.com](https://www.flickr.com/photos/open_hardware_summit/37122683523/) CC BY-NC-SA 4.0

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Title	Image	Last edited	Edits	Page Views	Likes
MapKnitter Cloud Exporter		over 2 years ago by warren	16	858	2
Unearthing Providence		about 4 years ago by warren	80	4,382	5
One Cranston	None	almost 5 years ago by warren	4	55	1
Topics	None	over 2 years ago by bhamster	22	18,270	3
Comment templates		over 5 years ago by warren	3	1,059	1
Projects	None	almost 4 years ago by liz	10	28,648	2
MACA		about 6 years ago by nanocastro	4	786	5
Open Call		almost 2 years ago by bhamster	24	43,421	4
Locked pages		almost 3 years ago by warren	5	1,268	0
Conduct		about 2 years ago by bsugar	44	322	2
Public Lab Privacy Policy	None	over 3 years ago by sashadev-sky	7	13,128	1
Power Tags		almost 2 years ago by laurel_mire	75	3,599	11
Spectral analysis		about 8 years ago by warren	30	5,350	10
Posting research		almost 2 years ago by laurel_mire	18	588	17
Spectral Workbench calibration		over 5 years ago by joyofsoy	36	11,020	4
Getting Started		about 4 years ago by liz	102	4,406	37
Somerville, Massachusetts		over 7 years ago by warren	24	746	3
Kits Initiative		about 4 years ago by mimiss	85	30,616	7
Guides		over 2 years ago by liz	57	2,273	5
Grassroots Mapping Curriculum	None	about 10 years ago by gonzoearth	30	1,351	3
Balloon & Kite Mapping		7 months ago by imvec	124	20,627	7
Gulf Coast		about 7 years ago by stevie	122	3,401	15

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