Take a photo of a barcode or cover
Stoker stretches the diary-entry format to its breaking point of believability here, which is not a good thing. I was also a bit unclear about the stakes of what the Dracula-hunting force was actually doing, so I was a bit baffled by Dracula's actions towards the end. The main body of this work is excellent though. I read this through Dracula Daily which I highly recommend.