What books and sources on iOS application architecture and design patterns to read?

Question

Books

After mastering the development tools (languages, frameworks, etc.), I ran into one problem. I do not understand how it is necessary to properly equip the interaction between classes. Therefore, over time, my applications become unusable for extension and editing. I understand that this is a big problem.
I would like to know what good books there are on designing iOS applications.
Objective-C or Swift doesn't matter. It is also possible in English, there are no problems with this.

Answer 1

Pretty bad entry. On Habré there was a translation.
https://medium.com/ios-os-x-development/ios-archit...

Answer 2

Absolutely all applications are suitable for expansion and editing, even those that do not have source codes. If you managed to make something unsuitable - write obfuscators and sell for big money!
And if you just have something that is not very quickly and conveniently expanded and edited, and you really need it to be more convenient, then specify the problem, and think, experiment, read about patterns, templates, study someone else's code, in a book at best only specific tasks and their solution are described, at worst - just a theory by patterns, why then books, there is Wikipedia and Habr, but you still need to think.