Derwent Academy Hardcover Sketchbooks, A4, contain 128 sheets of 135gsm smooth surface, acid-free plain paper that is tried and tested for use with a variety of dry media. This includes graphite, charcoal and colour pencils - for colouring, sketching and drawing techniques. The black linen hardcover and elastic closure helps to protect artwork whilst also offering a solid surface to rest on when creating art on location. The sketchbook also features a perforated edge to enable easy removal of pa