My point is that civil processes are entirely adequate to redress the wrong she committed. File a claim against her; if she fails to appear, you get a default judgment, and then execute by attaching property sufficient to pay all the costs she incurred. Garnish her wages, if necessary. She'll pay for the books, the court costs, and any penalties.
But no, that's not enough. Why, she's audacious. She *ignored the law, dagslabbit!* Arrest her!
The fact that "the law is the law" is precisely the problem here. It's a shame when human liberty is valued so little that two books should trigger an arrest.
The power of the state is frighteningly overblown. In this case, every necessary remedy can be obtained by civil processes instead, but for some reason our society is happy to handcuff, criminalize... you know, really sock it to her.
Sorry folks. I just don't think God-given human liberty is that cheap.