The Inart A4 110g Sketchbook with 80 Glued Sheets (1550399046) features 80 sheets of 100% cellulose, acid-free paper in a glued hardcover binding, more discreet and durable than the spiral version of the same line. The 110g paper is ideal for dry techniques such as graphite, charcoal, and colored pencils, maintaining good adhesion to the line without the graphite sliding too much on the surface, and the hardcover offers a firm base for drawing even without a table support. The glued binding allows the sketchbook to open almost completely, although without folding the sheets back as in the spiral version, resulting in a more uniform and understated finish when closed. It is suitable for those who prefer a more traditional-looking sketchbook to take outside the studio, for outdoor sketching sessions, or for everyday notes.