Trying to close a book and get back to the library or store in updated Books app

Okay, Thanks for the help. I had tried that but it only took me back to “Read Now” but I guess you have to then tap the upper right to see the Library list. It just doesn’t look the same either, because it doesn’t give you the details it used to of your own Collections (# of books, # read, etc.). So I didn’t think that was my real Library listing. I guess so though. Definitely prefer the old version because a) not a multi-step process to get to the Library list and b) liked the details from before. Is there any forum in which users can communicate to Apple that an upgrade feature has been an epic fail?