In 2006 he received a gold disc from Nielsen BookScan for £250,000 in sales of his Complete Relaxation CD.
Slate noted that Jane Austen's Pride and Prejudice was available from Amazon in 130 different editions; prior to BookScan there was no way to tabulate total sales.
The trilogy is now rated by Nielsen BookScan as the most successful debut fantasy series of the last 10 years, and in 2006 had sold over 275,000 copies in all editions.
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