This short video has demonstrations of art in the Clairefontaine Graf’Book notebooks using a variety of pens, markers, pencils, crayons, and other media. The white 100gsm paper is designed to work well with all inks without feathering or bleedthrough.
The video explains the 6 different sizes and 2 layouts (portrait and landscape) of the Graf’Book notebooks. You can see how the sewn binding allows the book to lie completely flat and fold back on itself.
You can see the video here: