With iOS 8 now out for everyone, Apple has now released their iOS 8 Guides for iPhone, iPad and iPod Touch. These user guides are designed to help those who are new to iOS or seasoned veterans learn every nook and cranny of the latest version of iOS for their particular devices. The guides are free and are available now in the iBooks Store.
Each iOS 8 guide is specifically written for a particular device so there are three individual downloads for iPhone, iPad and iPod Touch. Each guide is between 160-180 pages long so they aren’t huge downloads onto your device or Mac running iBooks. If you have not downloaded these free guides in previous iOS versions I would encourage you to do so. They are great self-help guides for finding settings or other how to’s in iOS.