32 iPad and iPhone Tips and Tricks NOTE Now that the iPhones and iPads come with a variety of different screen sizes, based on the model you choose, iOS 9 automatically adjusts all apps to best utilize available screen space. Thus, as you’re looking at screenshots throughout this book, keep in mind that what you see on your device’s screen may vary slightly if you’re using a different model iPhone or iPad than what was used to create the screenshot. ATTENTION, PLEASE… Throughout the book, look for What’s New, Tip, Note, Caution, and More Info boxes that convey useful tidbits of information relevant to the chapter you’re reading. In some chapters, you’ll also discover Quick Tips sections, which quickly outline how to perform a series of common tasks related to the iOS 9 features, functions, or app(s) that are being discussed. The What’s New boxes, for example, highlight new features or functionality introduced in iOS 9, while the More Info boxes provide website URLs or list additional resources that you can use to obtain more information about a particular topic.