Hmm, this question is hard to answer considering that I don't even know what book it is asking about.
What you should write is the title and author of the book you read. This is so easy, and should be on the front cover.
The genre is the theme of the story. Some examples include but are not limited to, mystery, horror or realistic fiction. This I cannot tell you because I don't know what the book is.
The number of pages I also cannot say. That is just the number of pages that you read.