Adam Ernst is an iOS Engineer at Facebook and previously helped create critically acclaimed products at Turntable.fm, Khan Academy and FogCree Software.



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Chris Eidhof is a Dutch software developer living in Berlin (Germany). He spends most of his time building iOS and Mac apps, such as [Deckset](http://decksetapp.com (http://decksetapp.com/)). He started [UIKonf](http://www.uikonf.com (http://www.uikonf.com/)), [objc.io (http://objc.io/)](http://www.objc.io (http://www.objc.io/)), and wrote a book about [Functional Programming in Swift]( http://www.objc.io/books/ ).