When you flick up on any photograph page during browse as an ebook, the explain page will appear.
I stayed in Mactan island in the Philippines for two months at beginning 2015. And I took a lot of underwater photographs.
I published this app using only photographs of shrimp. Why shrimp? Because I love it.
Most of shrimp are common species. Therefore many macro oriented diver might be familiar about it. But some close-up photos is included that many divers might never seen.