The product of combining biometric security technology with a book cover design is 'The Cover that Judges You' by artist Thijs Biersteker. With this novel design, the tables are turned—rather than judging a book by its cover, the book checks you out instead. But before you can even get a peek at the contents of this book, the cover does a scan of your emotions using facial recognition technology, to see if there are any signs of judgement. After this, the tech inside the book's cover sends an audio pulse to internal hardware to indicate if it should be opened or not.
Biersteker notes: "I often worry about my skepticism and judgement getting in my way of amazement," so the only way that the book will open is if it detects a neutral expression that's free of bias.