The smooth sketch paper is well suited for working with Indian ink, fountain pens and acrylic markers as well as other water-based pens with minimum abrasion. Colours stand out on the light-grey, non absorbant surface. Subjects can be laid out from bright to dark and completed by setting white accents. The anthracite coloured cover provides the impression of precious wood and touching it feels great. Bound in several layers and thread stitched, all the pages sit solidly and allow the artist to work on two pages, across the centre seam.  A red bookmark ribbon completes the premium-quality features. The Grey Book is slim and an ideal companion if you are on the road or travelling. Available in A4 and A5, acid-free and with a high level of longevity.