These hard-cover sketch books feature high performance, pH neutral, lignin- and chloride-free paper. The heavy-weight 270 gsm paper has a smooth white surface that is suitable for all dry media and ink. With both internal and surface sizing, it will accept light washes, wet media and watercolor as well. The covers are made with extra heavy-weight binders' board that is tough and resistant to warping. The hard-bound books contain 26 sheets. The 9x12 spiral bound book contains 50 sheets.
Stillman & Birn bindings are equally rugged. The hardbound bindings - stiff when new - are designed to be broken in. The spines get eased in and then lay completely flat, accommodating both two-page drawing layouts and flatbed scanning.
