Man...... I haven't read all the other responses but you're massively overthinking this. I really wouldn't do this elaborate book thing, the bracelets were cool but there's a line between nice and desperate.
Just tell her you always have fun when she's around and see if she wants to go for a coffee, if she's even remotely interested in you she'll snap your hand off, if not then problem solved and no more stress.
From your first post she's definitely into you, and coffee's hardly a declaration of love, she says no it's not like you look bad to any degree. Take opportunities while they're in front of you.