Free Access and Increased Sales
Michael Jensen,
PSP 2004, Washington, D.C.


NAP E-commerce
Current Conclusions


In April 2003, initiated PDF sales of 500+ books; now up to 850+, after real-time experiment regarding price points, cannibalization risks, etc.

Preliminary Evidence:
  • PDF sales accounting for a relatively small percentage of overall sales revenue
  • Experiment indicated that if PDF were free 44% of book buyers would be likely to take PDF and not buy print,
  • 11-15% for sure (from experimental data)
  • Experiment indicated only small # want both; reality is that PDF bundles are most popular PDF sales approach



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