Kimberly Shirley Sae-Ung
Kimberly Shirley Sae-Ung reviewedHookedA book on how to build habit-forming products
 Recommended
Pros: 

Interesting and insightful

Cons: 

Short

I actually went to a talk that featured Nir, great personality and was very interactive with the audience.

Kimberly Shirley Sae-Ung has used this product for one year.
Nir Eyal
Nir Eyal@nireyal · Author of "Hooked" blog at NirAndFar.com
Very kind of you to say! Thank you