Tell the editor what kind of book you are creating, who should read it and what you hope readers will take away. Mention important terminology, style references, sensitive subjects and any areas where you feel uncertain. This context helps the editor distinguish intentional choices from problems to review.
Include the latest manuscript version, a table of contents and relevant source notes. Invite questions before editing begins and agree on how feedback will be delivered. A brief does not limit editorial judgment; it gives the collaboration a shared starting point and keeps the author’s priorities visible.