Recto

Recto is the "right" or "front" side and verso is the "left" or "back" side when text is written or printed on a leaf of paper (folium) in a bound item such as a codex, book, broadsheet, or pamphlet. In the case of a single unbound sheet of paper or other material, such as a drawing or watercolour painting, the recto is the side with the main image or writing, and the verso the back of this. In a letter or other double-sided text document, the recto is the first page, and the verso the continuation on the back. In double-sided printing, each leaf has two pages – front and back. In modern books, the physical sheets of paper are stacked and folded in half, producing two leaves and four pages for each sheet. For example, the outer sheet in a 16-page book will have one leaf with pages 1 (recto) and 2 (verso), and another leaf with pages 15 (recto) and 16 (verso).