Book Editing and Formatting Expert Needed

I'm seeking a professional to edit, proofread, and format my book.

Key tasks include:
- Copyediting to enhance clarity and flow.
- Formatting layout, specifically:
- Chapter headings and subheadings
- Margins and spacing
- Fonts and typography

Ideal Skills and Experience:
- Proficiency in copyediting
- Experience with book layout and formatting
- Familiarity with major style guides (please indicate which you follow)

Please provide samples of previous work and an estimated timeline.