There are a number of ways to introduce an essay collection.
What are your goals in an introduction?
What is essential to communicate?
In some cases a lengthy discussion of the topic and a definition of the terms in the title (e.g. Literature and Economics, Empathy re-thought via Literature, Literature and Human Rights) is followed by how the essays fit the definitions.
Experienced scholars are welcome to comment on their concerns when they write either a preface or a more lengthy introduction.
Your methods are of interest to the writer and to readers of this discussion.