If you want a book that tells you that women are better in every way, even when it's clear they aren't, filled with cherry picked information, then buy it.
If you want a book about genetics with differences between genders (when women are better at some tasks and men at others) this book isn't for you.

Women are so fascinating. It’s a refreshing feeling walking away from a book having learned so much.

XX

Very interesting and enjoyable book. I highly recommend it.

This is an absolutely fantastic read. Not written in the tone of "women are the best" or really any sort of feminist lens, this takes it down to strictly the benefits of having a diplo set of sex-linked chromosomes (XX in female humans, ZZ in male birds, for example) and the genetic benefits that come from having a backup copy of each gene on the chromosome. This was a riveting read and fantastic narrative of why more medical and pharmacological studies need to include female subjects (mice, cells, humans, etc), and how medically speaking, the genetic sexes should be treated differently in many cases.

Don't let the title scare you. This book is firmly based in science and the benefit female's have by having two versions of the X chromosome for which they can refer back to and pivot around bad genes or weakened genetic mutations. A profoundly insightful read!