Crack in the bookcase

I managed to break my already broken vanity mirror the other day by standing on it (uhhhuhhh the shame) so I thought I'd experiment with the fragments and tried to catch the light of the setting sun out the window. 
There are also some horrific books I have on my shelf because my mum seems to have created a communal bookshelf which no one uses, that stays in my room. Permanently.
An example of these terrible titles include "A Little Princess" closely followed by "Immediate Action"