That is a great question. The short answer is less about consistently selling a lot of books, as it is about selling a lot of books over a short period of time. But how?
It’s all in the marketing and preparation building up to your launch date. The true is that building a better mousetrap isn’t good enough. You have to tell people about it and this is done through marketing. Your wonderful new book may be exactly what the world needs right now but it nobody knows about it, they likely won’t buy it.