Proofread and Edit Class 6 Textbook

I'm looking for a meticulous proofreader and editor for a class 6 educational textbook. The primary focus will be on grammar and punctuation, but I also need help refining the style and tone of the text throughout the entire book.

Key areas of attention:
- The introduction and overview
- The core content chapters
- The exercises and activities

Ideal candidates should have:
- Proven experience in proofreading and editing educational materials
- Exceptional command of English grammar and punctuation
- Ability to suggest improvements for style and tone
- Experience working with textbook formatting and layout

Please note, I need comprehensive attention to detail and a commitment to delivering a polished final product.