iOS 6 Upgrade Guide is a great book. Our editors rated it with a top 5 stars.
iOS 6 has arrived, and eager users everywhere are getting ready to update their devices. If you’re concerned about the upgrade process, or simply want to know all your setup options before making the big switch, let the editors at Macworld help you upgrade your iPhone, iPod touch, or iPad to iOS 6 with this step-by-step guide. Then, let us walk you through each of the marquee features of iOS 6: We'll show you how to get started with the new and improved Maps app, ask Siri about sports scores, enable Do Not Disturb, and adjust the new Accessibility settings. There's no better resource for iOS 6.