This book of the artist Sophie Calle was a challenge for EBS: many different papers make an unrepeatable product. The size is 21x29,7 cm (8,2 x 11,6 inches). The Interior with 400 pages is printed on different papers: 24 pages on 60gsm uncoated silk, 160 pages on 100gsm uncoated bulky, 88 pages on 135gsm premium gloss, 128 pages on 115gsm premium matt. There are several matt inserts: 4 DVD pockets tipped in 1 pamplet (size 10,5x15cm) of 40 pages printed on 50gsm Biblevellum paper and tipped in 1 pamplet (size 9x12cm) of 20 pages printed on 60gsm uncoated paper and tipped in 1 leaflet (size 9x12cm) printed on 50gsm biblevellum silk paper and tipped in 2 pages printed braille cover printed 2 colors on metallic paper gloss laminated with blind stamping on front and spine.