Paper color also differs across sketchbooks. Acid-free papers tend not to discolor or break down over time, allowing your art to keep its true colors. To protect their drawings, artists should look for paper that is acid-free. Toothy papers produce textured drawings with vibrant colors, but may leave gaps in the drawing due to the rough surface. Smooth papers are ideal for drawings with sharp edges and fine details, though they aren’t best for dry media that need to catch in the grain to transfer color. There are a variety of terms that can be used to describe texture, including “hot press' or “plate' for smooth papers, and “cold press' or “toothy' for rough papers. Some sketchbooks use specialty paper made of cotton-thick cotton paper is ideal for watercolors as it’s more durable, while thin cotton paper makes wonderful tracing paper. Most sketchbooks use paper made of wood pulp, which is processed to produce a variety of textures. Planner Stickers, Pens, Stamps, and More.Japanese Stationery: What's the Big Deal?.The Difference Between Ballpoint, Gel, and Rollerball Pens.