The book Why Aren’t More Women in Science?, is a collection of 15 articles by leading researchers in the field. It was put together in the wake of Lawrence Summers’ controversial musings in 2005 about why there are so many fewer women in high-profile positions in science than in law, medicine, and other professions. It is emphatically not a one-sided rant, any more than Summers’ original speech was. Instead, it gives experts on all sides of the debate an opportunity to present their evidence and make their case. In doing so, it provides fascinating insight into how difficult the “slippery sciences” are, and how easy it is to let your beliefs shape your understanding of facts.