Partially faded ink on some pages of a book
Media playback is unsupported on your device

Disappearing ink gives books in Argentina read by date

25 September 2012 Last updated at 17:18 BST

A publishing company in Argentina has begun printing books with ink that fades away after just two months.

Publishers hope readers will be inspired to finish off their books quickly, rather than leaving them languishing on shelves forever.

Tom Santorelli reports.