Published 2017 by Smashing Media AG, Freiburg, Germany. All rights reserved. ISBN: 978-3-945749-58-6 Cover design: Espen Brunborg Copyediting: Owen Gregory Interior layout: Markus Seyfferth Ebook production: Cosima Mielke Typefaces: Elena by Nicole Dotin, Mija by Miguel Hernández, and Maison Neue by Timo G?ssner. Design Systems was written by Alla Kholmatova and reviewed by Karen McGrane and Jeremy Keith. Please send errors to: errata@smashingmagazine.com