Will teach you how to become a beginner iOS dev
This book holds your hand while you develop some small apps. It's insightful enough, has code and pictures. It presents basic concepts well.
I'd have loved it if it at least tried to mention what other aspects of being an iOS developer it's skipping.
For example, readig this book will give you no idea about:
-How you write automated tests
-Whether "automated tests" even exist (don't laugh, beginners wouldn't know this)
-What platforms you use for helping test your app on multiple devices
-How you publish your app
-How you use third party libraries
-Whether third party libraries exist at all (don't laugh, a beginner would have no way of guessing this, if learning alone)
-Whether or how code in objective c can interact with code written in Swift
-Whether one has to learn both swift and objective C
-Whether such a thing as a "application architecture" exists
-Where explicitly to get more resources from (oh well, except the Apple documentation that is)
-Where do the pros get their info from? (any podcasts, tweeter handles, subreddits, git repos)
-What are some major popular frameworks used in the ecosystem, and what do they do?
...important aspects in my opinion
Let me also mention the lack of references in the book.
Maybe this book is supposed to be for beginners, but I didn't get that idea from the introduction. Maybe if I knew who this book is and is not for, I would not have purchased this.
My complaint about this book comes from my specific context: I've been programming for 7 years already, and I know the basics of app development. I also know that there are lots of very important things that come after the basics.
If you're looking for more than the basics, this book is not for you.
If you just want a thorough introduction to the Swift language and iOS, I definitely recommend this.
For me personally, it's barely 3 stars, and would not have bought it if I knew it focuses so much on building lots of similar apps, but gives you almost no overview of the iOS development ecosystem