Designed for professional artists who demand versatility, the Opus Essential Artists' Mixed Media line of spiral-bound and stitched books, glue-bound pads, and sheets and packs of paper offers premium surfaces for your creative explorations. Featuring 200gsm acid-free alpha cellulose paper, they provide the perfect balance of durability and smoothness, making it ideal for pens, graphite, coloured pencils, inks, and light applications of watercolour.