Apple books recommended by reddit

The most-mentioned books on r/apple.

Programming in Objective-C
6 users
Objective-C Programming
4 users
Cocoa programming for Mac OS X
3 users
iWoz
3 users
The Design of Everyday Things
3 users
Mac OS X and iOS Internals
3 users
Steve Jobs
3 users

Looking for more? Similar subreddits are Futurology, PLC, robotics, slatestarcodex, and spacex.