I usually make to-do lists with timelines, and pen and paper does the trick for me.

Every time you buy tickets on Ticketmaster, you help to digitize a book.

I co-founded Duolingo with the mission of bringing free language education to the world.

It's hard to think of a time when I'm not working, but when that is the case, I like to travel and eat good food.

I usually make to-do lists with timelines, and pen and paper does the trick for me.

One fact we're particularly proud of is that there are more people learning languages on Duolingo in the US than there are people learning languages in the entire US public school system.

My ultimate research goal is to transform our human existence to just eating, sleeping, drinking, playing - nevermind.