There has been a conspiracy, of sorts, by the popular press, the news media, and other entrenched powers that be, to hide what is really known about intelligence. This book is a complete survey of all the research known about intelligence. The simplest definition of intelligence is "the ability to reason and learn". The evidence is compelling that intelligence is a real trait, it's biologically based, strongly influenced by heredity, and different racial groups have different average levels of intelligence and a big part of that difference is genetic and not based on environment.
There is nothing really "new" in this book. But it compiles together in one book all the research about intelligence. There hasn't been a comprehensive survey of this sort written in decades.
Everyone should read this book. The Bell Curve is also a book that everyone should read, but this book should be read first. The Bell Curve starts with the assumption that intelligence is genetically influenced, but most people, indoctrinated by the liberal media, don't believe that or understand it. The g Factor presents the overwhelming evidence that there is indeed a genetically influenced general factor of intelligence.