[lilcarlyung]

"Hooked: How to Build Habit-Forming Products" by Nir Eyal and Ryan Hoover is a really interesting read on this subject. For me it was eye-opening to think about app development from a behavioral and psychological perspective, albeit manipulative.

http://www.amazon.com/Hooked-How-Build-Habit-Forming-Product...

[siquick]

Great book, even if my girlfriend called me a creepy weirdo for reading it.