This 16-sheet, 32-page sketchbook is the one I use for all of my sketches. It is 7 1/2” by 5” which, allowing a 1/2” for plastic spiral binding and with a 1/2” border gives you a clear 6” X 4”  space for your sketch/painting. This fits perfectly in a standard 10x8 mat for framing. It is made of 100% cotton, 140lb/300 g/m² Fabriano Artistico (artist grade) paper with chipboard covers covered in thick paper.