How much money an author email list makes: a simple formula, worked example, cost-per-subscriber limits and the maths mistakes to avoid.
Turn your author platform into a business: choose a model, compare income streams, write a one-page plan, know your numbers and set up the basics.
The self-publishing numbers that matter: profit per title, read-through, KU read depth, cost per sale and newsletter conversion, with a monthly routine.
What really sustains an author career: evidence on author income, realistic career stages, per-title profit, newsletters, pace and careful diversification.
