I got this notebook as a gift for someone. The texture of the pages is really cool, I've encountered waterproof books before but the pages were made of a soft plastic, while this is paper. The pages inside are a hybrid between lined and graph paper. The horizontal lines are solid and the vertical lines are faint and dotted, making it a good notebook for a variety of projects. However, the one I got, the cover and back cover were a little bit warped, so unless there is a flat surface underneath the notebook, the pages will not be flat. Still, a super neat and unique gift.