Silbey has done a really valuable service in researching and writing this book. Most major book-length criticisms of intellectual property law talk about the public harms of over-enforcement—here, Silbey's put in the legwork to approach it from the more challenging (and maybe more compelling) side, looking at how the law and norms around IP match and mismatch with various creative workers' expectations.
That said, this book is definitely tuned to an audience that is familiar with the existing critiques of the IP system. It's an academic text, and has the corresponding quirks that can make it a little inaccessible to a general audience: things like heavily footnoted paragraphs and occasionally repeated text designed to make the chapters stand alone if read independently.
Still: this book completely dismantles the common trope among the proponents of perpetually stricter and more expansive IP laws that "the other side" just doesn't listen to artists. Silbey has done the work, and shows pretty clearly that across a wide swath of "creatives," over- and under-protection create real problems that merit real consideration. Highly recommended for people who are engaging with the policy reforms that would benefit from that.