Saturday, November 10, 2007
A few days a ago I saw my book had reached an Amazon sales rank of 50,000. Somebody had once told me that presses consider respectable sales to begin at about this rank.
So, knowing that the real meaning of the rank is vague, I plotted out four of the more authoritative estimates of the relation between Amazon rank and book sales per week. The graph below shows these with rank on the x axis and sales per week on the y (note the scale is not linear). A rank of 50,000 is shown by the dotted line and the bottom value on the y-axis is one sale per week.
To cut a long story short, a sales rank of 50,000 suggests one may have sold a book that week.