While I might normally appreciate being able to opt out of spam, in the case of my local library I might have welcomed the odd marketing email to let me know about events.
The final screen also lacks the personal touch! And it would be handy if they finished specifying the "Text about bringing in ID".
Strangely, at the end of the process, Libraries NI don't seem to send out an email with your details, registration number and instructions of what you need to do when you first visit a physical library.
The information about bringing proof of name and address is explained on the opening page of the registration process, but that's really not when you'll be paying attention!