What is a book, really? In tracing the passage of a single work from the alleys of Lahore to online retail and the author’s bookshelf, this chapter argues against idealism. In transmission, ideational content sediments within specific material contexts. In this way, ideas become objects. Consequently, the same idea can take shape by drastically different forms, affecting the practice of interpretation. The affordances of the object – what can be done with it, how, and where – affect our practices of interpretation.