Suitable for both wet and dry techniques: Watercolour, Tempera, Acrylic, Ink as well as Pastels, Charcoal, Coloured pencils, Graphite. Suitable also as a visitor book.Thread bound (stitched), gauze spliced, straight spine. The frontpaper of the blue cover has a light blue colour, and the black one´s have a light grey frontpaper.160 gsm machine mould-made paper, rough grain with high pigment bonding, double coated, its made of pure ECF Cellulose and 35% cotton, acid-free (pH 8-9.0), no chlorine bleach, ISO 9706 "long life". Paper and books are made in Europe.