Assuming no prior knowledge and in the usual easy-to-follow In Easy Steps style, this title will start by explaining what exactly is the iPhone?

Then, the author covers 136 topics which include cellular, wireless, battery and storage capabilities; Touch screen display; Virtual keyboard; audio and video playback; camera: stills and video; Buttons and controls; SIM card slot; Ports; Headphone socket; Installed programs; key new features with iPhone software version 4.0; customizing the Wallpaper; basic care of the iPhone; synchronizing data; using MobileMe; battery care; installing system software updates; initial setup and registration; Networks: Edge, 3G and WiFi; Airplane mode; all the clever ways of making phone calls including conference calls; music video; communicating using other programs including skype... everything the reader needs to know to make the most of the iPhone.

All this for less than $15! A worthwhile investment for any iPhone 4 newbie!