Will Hacker is a senior UX professional and the author of Mobile Prototyping With Axure 7. He spent two and a half years working exclusively on mobile design, prototyping, and usability testing at Cars.com. He also has written about prototyping and user experience design for Smashing Magazine and UX Booth, and is a frequent speaker at design events in Chicago. Will is a Lead Interaction Designer at GE Capital, where he works on multi-device designs for commercial lending software. You can follow his tweets at @willhacker or visit his website at willhacker.net.