2017-18 sketchbook for sale Posted on August 6, 2018 by Harley R Reply My latest sketchbook is available to buy, featuring over a thousand pen drawings from between Dec 2017 and August 2018. 111 double page spreads in an 11cm x 15.5 cm Ryman sketchbook. Samples below. Cost: £495 plus postage and packing. Enquire here.