Kunst & Papier Binderboard Sketchbooks are one of our best-selling sketchbooks! These sturdy, high-quality hardcover sketchbooks can be covered with bookcloth or paper, or decorated however you like. They can be opened flat and even bent back double without damage to the binding. The heavyweight acid-free pages are great for all dry media as well as water-based markers, inks, and light washes. You will love these sketchbooks!