I've published 12 books in the last twenty years but none have rocketed out of the shops quite like Micromastery. Partly it was getting good publicity, partly great cover design, great recommendations and a good basic idea.
But this is one thing that has had a big impact and is COMPLETELY DIFFERENT- how one man spent £11.63 and turned a few views into thousands in an attempt to show me how much publicising a book has moved on in the last year or so. You'll be amazed- I still am.