I've been writing science fiction and fantasy novels for over a decade now. I've self-published nine novels so far and I had to proofread all of them. I also run a blog where I have to not only proofread my own work, but my friend's as well since he is a contributor. This has given me much experience in the field, being that the blog has 543 active posts. I've been doing it since January 2011. You can see for yourself by visiting Mirror Slide Junction.