The papers in a composition book often have the baseline and cap line printed in blue to aid writing, with a (sometimes red) vertical line for a margin on the left hand of every page. Traditionally, the inside back cover contains a table of the weights and measures of the English (imperial) system printed for reference; however, this feature has become less common in countries that have adopted the metric system. Sometimes a multiplication table, or grammar or punctuation tips, are also found on the inside back cover. The inside front cover typically has a place to put one's weekly class schedule.