These lab notebooks do not feature carbon copy backing. They are suitable for taking notes, and will not reproduce writing on additional pages.

Graph paper is quadrille-ruled, with horizontal and vertical lines in a grid fashion for drawing, sketching, or recording observations in an organized manner. The lines help to provide scale and structure for architects and engineers creating technical drawings, scaled plans and specs, equations, and notes.

Carbon copy lab notebooks feature carbon copy backing on each page to create duplicate copies of notes and writing without additional machinery. They are suitable for recordkeeping purposes.