The Posh Eco Display Sketchbook is spiral bound, this allows the pages to lie flat so that artists can work across two full pages. It also means that you can turn the pages with ease and the back cover can act as a working surface as it can fold over on itself. The hardback cover can also provide protection for your artwork. Spiral binding also makes the sketchbook more durable than a glued binding as over time glued spines can deteriorate and pages can begin to fall out. This Pink Pig Display Book contains 25 leaves of 270gsm acid free black recycled paper. Made in Britain.