An exercise book (also called version book or in Ireland, a copy book) is a notebook that is used in schools to copy down schoolwork and notes. A student will usually have a different exercise book for each separate lesson. The exercise book format is different for some subjects - for the majority of subjects, the exercise book will contain lined paper with a margin, but for other subjects such as mathematics, the exercise book will contain squared or blank paper to aid in the drawing of graphs, tables or other diagrams. On the east coast of Canada they are called "Scribblers". In India they are typically referred to as "Khatas". In some schools, exercise books can change color depending on the subject. For example, Biology might be green and Maths be blue.
The typical size of a school exercise book is 9x7 inches[where?].