Check out these photos from the book display for Mitteldeutscher Verlag Publishers this year.
The booth was made up of perforated boards and the original writing tool, pencils! The pencils acted as nails to hold the boards of the display together and as shelves to hold up the books.
Visitors however were invited to take one of the non-essential pencils and keep it as a reminder of this brilliant display.
15,000 pencils were involved in this installation. That's enough to draw a line 840,000 kilometres long! Wow!