Buttonhole stitch binding.
Decorative Paper covers reinforced with additional watercolor paper. Both front and back inside covers have an envelope/pocket. Wax-linen thread stitching.
Pages: Heavy natural white watercolor paper, toothy finish, natural deckle edges, 300 gsm, neutral pH. The acid-free paper is a great surface for sketching, doodling, and allows graphite, colored pencil, pen & ink, gouache, and even markers!
Book dimensions:
Small 4.5 inches x 5.5 inches
Medium 5.5 inches x 6.5 inches
Big 5.5 inches x 7.5 inches