An assortment of books that are perfect for travel, special studies, workshops or classes, or as note book and sketch diary. The books have a flexible paper cover that makes it easy to slip in a bag or pocket. The acid- and chlorine-free bright white 130gsm (90 lb.) sized paper is sourced from sustainably managed forests and is capable of handling just about any media you choose to use - pencil, charcoal, pen and ink, pastel, markers, light washes and multi-media techniques. Each staple-bound book contains 24-sheets (48-pages) and can be opened flat or folded over when working. The 36-book assortment includes twelve 5.5" x 8.5" books and twenty-four 8.5" x 11" books.