John Locke, 60, who publishes and promotes his own work, enjoys sales figures close to such literary luminaries as Stieg Larsson, James Patterson and Michael Connelly.
His remarkable achievement is being hailed as a milestone of the internet age and the beginning of a revolution in the way that books are sold.
Instead the DIY novelist has relied on word of mouth and a growing army of fans of his crime and western novellas that he has built up online thanks to a website and twitter account.
But unlike these heavyweights of the writing world, he has achieved it without the help of an agent or publicist – and with virtually no marketing budget.
Interesting. We’ve got about, oh, 999,000 sales to go to catch up, so help spread the word!