There is a large market for aftermarket books like the forthcoming iPhone 5 for Dummies, but Apple also offers a free iPhone Users Guide updated for iOS 6 both in PDF form and on iBooks.

A viral video decries that there is no iPhone user manual. So, it's a good thing there are some easily downloadable, straight from Apple. If you don't know — and that is the point, few do ...

After tapping the link to download the iPhone manual above, tap Get – you may need to enter your Apple ID and password. Once the user guide is downloaded to your device, choose Read as shown above.

It certainly can't hold an 872-page manual, no matter how small the font. The good news is that you can get the user manual from Apple — you just need to know where to look.