Artist Series Sketch Art Books feature 50 sheets of 1557 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. Canson 1557 paper is 120gsm (74 lb.) and is ideal for pencil, colored pencil, pastel, charcoal, red chalk and felt pen.