We target critical factors like originality and continuity of storyline, consistency and depth of character improvement, duration/word rely as well as other things contributing to your readability of the book. My proofreading process used to take months, and I had to hire 3 freelancers. With Spines, I can perform it https://whitemagicstudios.co.uk/blog/what-are-the-things-to-do-when-self-publishing-a-book/