Chapter 1. The Guided Tour
If you’d never seen all the videos and photos of the iPhone, and you found it lying on someone’s desk, you might not guess it was a phone (let alone an iPod/Web browser/alarm clock/stopwatch/voice recorder/musical instrument/compass). You can’t see any antenna, mouthpiece, or earpiece—and goodness knows there are no number keys for dialing.
It’s all there, though, hidden inside this sleek, thin slab.
For the rest of this book, and for the rest of your life with the iPhone, you’ll be expected to know what’s meant by, for example, “the Home button” and “the Sleep switch.” A guided tour, therefore, is in order.

Sleep Switch (On/Off)
You could argue that knowing how to turn on your phone might be a useful skill.
For that, you need the Sleep switch. It’s a metal button shaped like a dash.

On the iPhone 6 models, it’s on the right edge; on earlier models, it’s on the top edge.
It has several functions:
Sleep/Wake. Tapping it once puts the iPhone to sleep—into Standby mode, ready for incoming calls but consuming very little power. Tapping it again turns on the screen so it’s ready for action.
On/Off. The same switch can also turn the iPhone off completely so it consumes no power at all; incoming calls get dumped into voicemail. You might turn the iPhone off whenever you’re ...
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