Porous and cellular

A page from a 12th-century copy of The Song of Songs containing the 'Glossa Ordinaria', a collection of commentaries from the Church Fathers, evolving over time. Cologny, Fondation Martin Bodmer, Cod. Bodmer 31

Someone writes a book and becomes an author. Another one picks up the book and becomes a reader. The reader meets the author on the printed page,…