Artist Series Drawing Art Books feature 100 sheets of "C" a Grain fine grain white drawing paper, a durable hard cover in blue cloth with right-angled corners for greater rigidity, a colored elastic band closure and an inner gusseted pocket to carefully store memories. With a chrome spiral binding, these art books allow for creativity anywhere. The name "C" a Grain refers to this paper's slightly grained texture that allows the artist to quickly achieve subtle effects of depth as well as shading between shadow and light. The 180 gsm (111 lb.) paper is ideal for pencil, pastel and charcoal.