The third edition of The No-Nonsense Proofreading Course addresses all (I hope) of these concerns.
I now have an entire chapter devoted to calculating how much you should charge your customers, including an easy-to-use formula.
The chapter on proofreading symbols has been substantially expanded, and now includes examples of the proofreading symbols 'in action'.
The chapter on setting up your proofreading business has been updated to include the latest freelance marketplaces and to factor-in Google's latest algorithm changes to give your website a fighting chance in the search-engine results.
I've emailed a copy of the third edition to every customer who has bought my proofreading course in the last 12 months or so. Due to spam laws, I can't actually email anyone who bought the book before that time as they would legally be considered a 'lapsed account'.
However, if you bought the eBook at any time and can provide proof of purchase (a PayPal reference number or even the email address of the PayPal account you used to purchase the eBook), I will gladly send you a link to download the course free of charge.
I'm really pleased with how the third edition of The No-Nonsense Proofreading Course has turned out. I hope you will like it, too.