Before the advent of printing, herbals were produced as manuscripts, which could be kept as scrolls or loose sheets, or bound into codices. Early handwritten herbals were often illustrated with paintings and drawings. Like other manuscript books, herbals were "published" through repeated copying by hand, either by professional scribes or by the readers themselves. In the process of making a copy, the copyist would often translate, expand, adapt, or reorder the content. Most of the original herbals have been lost; many have survived only as later copies (of copies...), and others are known only through references from other texts.