The cost of editing a whole book depends on the type of editing and the length of your book. Developmental editing is the most in-depth, and therefore most expensive type of editing. Manuscript assessment is less detailed and therefore less costly. Copy editing is the most aoffordable type of editing.
A typical novel is 80,000 words and, at $25 per 1000 words for developmental editing, this would cost $2,000.
A manuscript assessment for 80,000 words would be $20 per 1000 words and would cost $1,600.
Copy editing for 80,000 words would be $15 per 1000 words and would cost $1,200.