Which kind of editor should I hire? (and should I get my friend to proofread my book?)

You’ll hear about lots of different types of editing for your self-published nonfiction book. Which type of editing do you need to outsource and are there any you do yourself?

How to write a unique nonfiction book. Or, ‘Help! Someone has already written my book’

The more you can position your nonfiction book in the wider conversation, the better.