If you are new to iOS 12 (the operating system on iPhone and iPad) then this book will teach you all you need to get started as quick as possible.
This book is a bundle of the two bestselling books "The Ridiculously Simple Guide to iPhone X, XS, and XR" and "The Ridiculously Simple Guide to the Next Generation iPad Pro"; you can buy them separately or buy them together to save.
Buy The Ridiculously Simple Guide to iOS 12: A Beginners Guide to the Latest Generation of iPhone and iPad by Brian Norman from Australia's Online Independent Bookstore, BooksDirect.