"We want our books to be used. That's our philosophy," said Georges Hemmerstoffer, head of the Klo-Verlag which publishes the toilet paper literature. About half of all people liked to read on the toilet, he said.

Poems by German literary giants Heinrich Heine and Christian Morgenstern, as well as tales and detective stories could be found on the toilet rolls, Hemmerstoffer told Reuters at the Frankfurt book fair.