This book was recommended by a friend. I've really enjoyed reading it, and feel the research and studies presented give a different perspective than "traditional" pregnancy wisdom. I would recommend it to anyone preparing for pregnancy. However, the copy I received is flawed. There are several instances where pages are either missing or duplicated (as shown in the image attached). I believe the book was revised/edited for 2019, and apparently during that process something went awry. Penguin Random House must have been busy! Regardless, its a good read with a lot of helpful information.