The sexual paradox : men, women, and the real gender gap by Susan Pinker

A book which attempts to explain the backsliding on gender equality which has happened. I.e. where women seem to actually be hitting a glass ceiling and fewer women go into previously entirely male dominated fields than one would expect by simply assuming the only barrier previously to women doing these jobs was discrimination.

The books basically says men and women are different. They have different goals. You will probably never have the same number of women interested in jobs dealing with competition and 80 hr/week jobs with huge pressure because women just don't enjoy that kind of job as much as men do.

Really it seems obvious, but for those having grown up with the ideal of absolute and interchangeable equality, it's a bit of a reality check.