> I am fairly confident that I did not lose any measurable sales because IA chose to put my 2014 book in its national emergency library. But it infringed on my copyright nonetheless.

Irrespective of whether it is infringing (presumably the courts will sort it out), how would you measure the harm that you have suffered or will suffer due to the IA's action, and what do you think would be an appropriate remedy or compensation for you, based on that harm?