38. The method of claim 28 , wherein generating a digital specification comprises generating instructions, which when executed by the execution environment, causes the electronic reading device to present a manipulable image object.
38. The method of claim 28 , wherein generating a digital specification comprises generating instructions, which when executed by the execution environment, causes the electronic reading device to present a manipulable image object. 40. The method of claim 38 , wherein generating a digital specification comprises generating instructions, which when executed by the execution environment, causes the electronic reading device to allow a user to zoom a manipulable image object.