Books and files disappeared in iBook app

my book app had many different file types, some pdfs, some epubs, some samples and purchased books from the bookstore. I went to delete a duplicate epub, and the app glitched and ended up selected all books/files in the app and deleted them before I could click out of the command. Now I cannot find any of the books again, there is no recently deleted file or previously purchased file on the Books app which is incredibly frustrating. Some books and pdfs show up in the “recent” grouo of the “reading now” tab, but no books appear in the “library” tab. I have no idea what happened with all of my books and files nor how to get them back! Why is there not a recently deleted tab on the Books app!!