This cool notebook features multiple pi symbols inside a red apple. This is a great gift for teachers, professors, students, artists, mathematicians, mathletes, engineers, physicists, scientists, or anyone who loves math. Graph paper is excellent for writing, taking notes, sketching, drawing, mapping, designing, charting, work, school, and hobbies. Click "Math Books by Witty Logic" for more. Product details: 7.44 x 9.69 in Paperback 50 Sheets/100 Pages Quad Ruled Graph Paper 4x4 Black and White Glossy Cover