Does copyright help artists? Not necessarily, say these writers.

Madhavi Sunder reviews Who Owns This Sentence?, which weaves through the history of copyright and grapples with key current issues.

"[C]opyright, the authors point out, is the legal matrix underlying the wealth of nations today, with copyrights in design, software and popular culture accounting for nearly all the valuation of 'six of the largest corporations in the world.'"

Read more in The Washington Post.