How to exit a book in the ereader app on iphone?

[gina]

I finished the book I was reading, and I can't exit! I clicked "books" and the heading changes to books, but the page itself doesn't change! What the hell? If I exit the app and go back in, it automatically goes to the same page of the book and I'm stuck at the same place. I've tried everything I can press on there and nothing works! I want to read another book already! I can't find any help about this in internet searches so if anybody else has experience with this and advice, please help!