[ZuLuuuuuu]

I like how it gives an option for margin size. It even allows 0 margin! One of the most annoying things about Google Play Books is that it puts pretty big margins to left and right and you have no control over them, so my phone's screen is wasted on a lot of empty space. Amazon Kindle is better because it provides a narrower margin option but I would prefer just 0 margin on my phone.

Also the app itself looks nice and native, good job.