Perfect size! Perfect layout! This 123 page hybrid all in one notebook + sketchbook is all you will need for the office, school, job site or hobbies. Poets, artists and songwriters as well as hobbyist, wildlife enthusiasts and armature archaeologists take note of this versatile format as well! All right hand pages are standard spaced ruled (30 lines). All left hand pages are blank unlined for sketching or drawing pictures, diagrams or observations. This is also the ultimate notebook for math or science classes! You can take written notes on the ruled page and draw diagrams or math equations beside your notes on the opposite blank page. Also great for use at the office or job site where notes and sketched diagrams can coincide. 8" X 10". Available in many different cover designs and colors. Be sure to check out other notebooks, journals, diaries and more created by Christopher Scott!