There are plenty of books promising to be some kind of missing manu-al, but there is no missing manual! There is a manual! You can find it on Ap-ple's website.
There are also plenty of books that seem more like a commercial for the phone, merely showing the features, but not how to use them. This book is neither of those things.
The goal of this book is to help you discover the features most people want to know about and show you how to use them.
The guide is based on new iPhone's that no longer have the Home but-ton (iPhone X and up), so if you are updating from an earlier advice, then this guide won't be as useful to you.
Are you ready to start enjoying your new iPhone? Then let's get started!