Page numbering page). Even numbers usually appear on verso pages, while odd numbers appear on recto pages. In the printing industry, in cases where odd numbers appear on verso pages and even numbers on recto pages, this is referred to as "non-traditional folios" (in the past, it had been referred to as "Chinese folios", however this term has fallen out of favor in recent years). In books, some pages, known as "blind folios", of the front matter and back matter are numbered, but the numbers are not always printed on the pages. Publishers are not consistent about how they number the pages
Page (paper) lightness or darkness of the page is referred to as its colour. In book typography, a "cat hairbrush" refers to a master design of a page, designed by the graphic designer or the typographer of a book, that illustrates how similar pages in the same book can achieve a level of visual consistency. To help maintain the desired consistency, the typical page may employ a grid system. In a modern book, a page may contain a header and a footer. Pages may or may not be numbered, but most pages are. "...The first printed books had no title pages. As