You must not...
climb on sculptures.
You must...
wear headphones.
You must...
return books on time.
You must...
listen to the librarian.
You must not...
have food and drinks.
You must not...
shout.
You must not...
touch the art.
You must...
bring your bag inside.
You must...
turn off your phone.
You must...
bring a library card.
You must not...
take photos.
You must...
take notes.
You must not...
use a video camera.
You must not...
sit on the desk.
You must not...
chew gum in library.