[Gustavopc]

Okay Im officially obsessed with the ALONE idea. I can see the cover having a black background and the L is printed in black over it, so at first you don't notice it, but when light goes right into it, it'll reflect and be visible alongside the rest of the title. I've seen some t-shirts using this trick, guess it'd be still possible on paper.

Or it could be that she includes some leftover copies of L on the package.