These sketch books feature high performance paper that is pH neutral, lignin- and chloride-free and milled from pulp with an alpha cellulose content that exceeds 87%. The heavy-weight 100 lb. paper has a toothy, ivory vellum surface with superb erasure characteristics and is suitable for all dry media. With both internal and surface sizing, it will accept light washes as well.
The covers for the hard-cover and wire-bound editions are made with extra heavy-weight binders' board that is super tough and resistant to warpage. The flexible, yet rugged soft covers have soft-bound sewn bindings and rounded edges to prevent fraying.
The hard-bound books contain 62 sheets, the soft cover books contain 46 sheets, and the wire-bound books have 50 sheets. Bound in the USA.