Monday, 4th August 2008 at 12.00noon GMT
If you would like to participate in the project, please let us know. We are very keen that sensitive information such as the profitability of individual firms be kept from the market place. To this end we have produced a downloadable calculator which returns a single number value for secondhand book sales aggregated over a certain time period. The algorithm is not reversable except in the case of exceptionally low sales figures.