Non-Fiction Book Structural Editor

I'm seeking an experienced structural editor for my non-fiction book. The primary focus is on a unique topic that doesn't fit standard categories.

Ideal skills and experience:
- Expertise in non-fiction, particularly in 'other' topics
- Strong structural editing background
- Ability to enhance clarity, flow, and coherence
- Excellent grammar and language proficiency
- Previous editing experience with published authors

Looking for someone who can provide in-depth feedback and improve the overall structure of my manuscript.