Elegant Christmas Visuals for Book

I'm in need of an experienced and creative social media content creator to help me engage my audience on Facebook and Instagram for the upcoming Christmas season.

Key Requirements:
- Creation of a variety of visual content; including graphics, photos, and videos.
- Content must revolve around the theme of 'elegant and sophisticated'.
- This content should promote my Christmas themed book subtly and draw the attention of viewers.
-The USP of the book is a Letter to Santa template page that can be detached from the book whilst a copy of the letter stays within the book
-The content should be focused and use images of my book

Ideal Skills and Experience:
- Proven track record of creating engaging social media content.
- Ability to work with a festive and colorful theme, with a specific focus on elegant and sophisticated visuals.
- Experience in promoting books or literary materials would be a plus.