Exercise books typically use lined paper as the most common type. The ruling or line spacing can vary depending on the intended use or grade level. Common line spacing options include wide ruled (with wider lines), narrow ruled (with narrower lines), and college ruled (with medium-width lines). Apart from lined paper, exercise books may also feature blank pages, grid paper (with a grid pattern), or even specialized paper for specific subjects like math (with squares or grids for mathematical calculations). The specific type of paper used can vary between brands and regions, but lined paper is generally the most prevalent in exercise books.
classinn.com