if(this_page > pages_read)break;
if(this_page <= c.getEnd_page()){
if(!ob.getChapters_viewed().contains(c)){
ob.getChapters_viewed().add(c);
}
Page page = new Page();
page.setNumber(this_page);
this_page += 1;
ob.getPages().add(page);
}
if(this_page > c.getEnd_page()){
for(Chapter n : b.getChapters()){