Vellum is a downloadable program for Mac that gives you the tools to create a professional layout for your book interior.

99Designs is a platform with a large community of designers across disciplines including book cover & web design.

Fiverr is a marketplace of freelancers across many different disciplines. It is renown for its affordability.

Aliza Folgelson specialises in editing for: lifestyle, memoires, non-fiction and offers services as a ghost/co writer.