Dear Hiring Manager,
I understand your requirement to work on the header of your book in Google Drive, including changing the first-page header, updating other names, and adding chapter names to subsequent pages. I have experience with formatting documents like this, and I can complete this task efficiently.
I estimate that it should take a few hours to complete the header adjustments for all 200 pages. If you'd like to proceed, please provide me with access to the Google Drive document, and I'll get started on the task.
Looking forward to working with you.
Best regards,
Mirza Jahangir