The title of a book should reflect its contents. To just say that it is a book of poetry doesn't really give us enough information to go on. Only you can come up with a good name! Book Titles come...
No. Reading in the dark will strain you eyes. If you have a booklight or a flash light that will work and then you can get the eery effect without straining your eyes.
I would chose Untitled for the title for a book of haiku. The reasoning behind this is, traditionally haiku are not titled, therefore with your book being titled, Untitled it reflects the poetry or...