Each stage of the process is carried out by the relevant editorial professional, in much the same way as a traditional publisher.
As structural editor, the first thing I do is print your manuscript and read it through, making notes along the way. I will raise an editorial critique - not a creative writing assessment, although there is some overlap - that contains a suggested course of action for you to follow in order to prepare the work for copy-editing. A structural edit is the hardest and longest part of the editing process, and will require a committment from you.
In the meantime, you work directly with the graphic designer to discuss ideas or ask for advice about how your book cover will look.
Once your manuscript has been updated to reflect the structural edit, it will be passed to the copy-editor to work on.
Once copy-editing is complete, the graphic designer will typeset your manuscript, laying it out in book format, and create a source document for both the printed book, and provisional cover.
A proof copy of the book is ordered and sent to the proofreader.
Only when the proofreading stage has been satisfactorily completed, can your book be self-published.