"Hooked: How to Build Habit-Forming Products" by Nir Eyal - I'm reading it myself. I think it's really useful for those doing product development/management and

"Hooked: How to Build Habit-Forming Products" by Nir Eyal - I'm reading it myself. I think it's really useful for those doing product development/management and building user engagement. http://www.amazon.com/Hooked-How-Build-Habit-Forming-Products-ebook/dp/B00LMGLXTS/ http://www.amazon.com/Hooked-How-Build-Habit-Forming-Product...