Regardless of what your opinion is on immigration, the illustrations in this book are very well done. Caplan addresses many arguments against open borders and finds solutions. His arguments on economic growth are compelling and he does address that most low-skilled young immigrants are still a net gain for American capital, although he does not address a glaring issue: that not everyone who immigrants to the US will want to work. He also swings and misses in regards to what "culture" is and whether or not culture is worth preserving. His section on IQ was also weak. Full review soon.