Books and newspapers are cut into horizontal stripes, pressed and glued into a whole with exactly the same format as the original. Denmark refers to this transformation as a dead letter, because only traces of the text remain on the surface.
- Dead letters, 1974
- Dead letters, 1975
- Dead letters, 1981
- Dead letters, Bank Delen, 1994 – 2013
- Dead letters, 1994
- Dead letters, 1997
- Dead letters, 1997
- Dead letters, 2002
- Dead letters, 2009
- Dead letters, 2012
- Dead letters, 2013
- Dead letters, 2014