E-mail:
s.flaxman (at) imperial.ac.uk
flaxman (at) g mail dot com
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Google Voice: (847) 250-7384.

E-mail for mobile, Skype, etc.

Hope to hear from you soon!

(You may be looking for the other Seth Flaxman, who graduated from Columbia in 2007, worked at the Council on Foreign Relations, and is now running Democracy Works (TurboVote). You can find him on LinkedIn.)