Blank generation

I.

The holy grail of the author's own collector's quest is the 1961 1s 3d Parliamentary Conference stamp, which he recalls as being "the most beautiful small object I had ever seen" as a boy. On this stamp, the head of the Queen, which should by rights have occupied the top half of the stamp, was missing—leaving an enchanting and suggestive blank space.
—Katherine Sterling, review of Simon Garfield's Error World, TLS, May 20 3008

II.

—Shtoom, Christian Marclay (2006; cover of Fall 2008 University of California Press catalog)