Paperthinks large squared notebook has plenty of space and paper for the person who needs some “structure.” Square pages allow for figure precision and consistency to scale. With the large square notebook, an artist can start drawing the beginnings of a comic; a scientist or mathematician can compile all their formulas and data into charts and graphs; even a school teacher can use the squared notebook as a written grade book. Each notebook is bound with 100% recycled leather and at least 50% recycled paper. The notebook also includes a ribbon page marker and an expandable pocket on the inside back cover to hold memos and loose sheets. Available in 24 stunning colors. Measures 4.5 by 6.5-inches.