I never used to read manuals for any products simply because they were all so poorly written. The ones that were well written were full of useless witty remarks or histories of the device. What I enjoyed about this guide to iOS 10 the most is that it cuts out all of that extra, unnecessary content, and gets right to the point. This aspect of a user guide makes for an invaluable reference tool. Every chapter is succinct and transparent. An intro to each section is followed by a step-by-step procedure and a couple of screenshots to make sure you don't get lost. This is an excellent book on the whole. I might start reading manuals if they were to follow the format of this one.