Tiny enough for a back pocket, this 3½ x 5½ inch notebook nonetheless provides plenty of room for jotting thoughts and sketches. The front 80 pages are printed with a dot grid, handy for graphs, sketches, or diagrams; the back 80 pages are lined for notes, ideas, and info. It's all wrapped up in an iridescent silver cover with sky blue endpapers, not to mention an inner pocket and a stretchy closure band to keep it neat.