Let's now look in closer detail at the progress of another title in the Library, a novel I co-authored with David Drake: An Oblique Approach, the first volume in the Belisarius series. I think these figures demonstrate the impact of the Library more clearly than any other.
An Oblique Approach went into the Library a few days after Mother of Demons-i.e., it's been available for free for a year and a half now. That novel first came out in paperback in March of 1998. (There was no hardcover edition.) Here are the royalty figures on that novel, beginning with the first period for which figures are available and ending with the last. The first column gives you the royalty period; the second, net sales of the book as of that period; the third, the current sell-through; the fourth and last column, the new sales which took place during that reporting period:
Code:
Royalty Period Net sales Sell-through Sales this period
July-Dec 1998 30,431 70% 30,431
Jan-June 1999 35,977 80% 5,546
July-Dec 1999 36,812 78% 835
Jan-June 2000 37,607 77% 795
[An Oblique Approach goes into the Library mid-way through this period]
July-Dec 2000 39,268 77% 1,161
Jan-June 2001 41,172 77% 1,904
...
Within a year after a novel comes out, the sales usually drop right through the floor. Thereafter, sales steadily dwindle away. And, sure enough: in the third and fourth periods,
An Oblique Approach sold considerably less than a thousand copies each period-835 and 795 respectively, showing the expected slow and steady drop.
It's what happens
next that is significant. Because, all other things considered, those "sales this period" figures
should have kept steadily dropping. Slowly, perhaps, but what most certainly
shouldn't have happened is a sudden rise in sales-and a rise which increases in the next period.
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