Sunday, September 28, 2008
I have been collecting ebook sales data for almost 2 years now. In that time average first month sales have increased from 81 copies to 222. Average first year sales have increased from 320 to 444. Sales from books on sale for a year or more have increased from 564 to 707. There is a lot of negative press surrounding epublishing, but this data suggest that sales are increasing steadily.
I have also updated the publisher specific data which continue to show Ellora's Cave in the lead, followed by Loose Id, Amber Quill, Samhain and Liquid Silver Books.
Overall the data set (currently covering 190 book and 17 publishers) remains very patching and lot of the records I have are about to time out because the book is no longer on sale, or the record has not been updated in the last year. So if you are an author please consider adding to the data set or updating the data you have previously sent. I would particularly like to have enough data to relist Wild Rose and Freya's Bower--and to add any other important presses.
Data may be sent to veinglory [at] gmail.com including book title, publisher, and sales to the end of as many of these periods as apply 1) first month, 2) first year and 3) total to date. data is used only to calculate average data as shown.