This book was way more scientific than I thought it would be, so it took me longer to get through it then I originally thought it would. However, it was still enjoyable even if it was in a genre that I normally don't read. I appreciate the research that the author put into this book, taking care to explain exactly how the various poisons work in our bodies and what they do to cause death. I also appreciated how there were so few spoilers and on the rare occasion one had to be given to explain how the poison worked, the author warned us to skip ahead. So you can still read the novels knowing the weapon but not the motive or who.

One thing that was really interesting to me is how easy it was to get these poisons in earlier years, and how much they were apart of our life. The titular poison use to be in wallpapers for example before it was learned how dangerous it was. And it was a bit scary to see how fine the line was between something being helpful and harmful.

Overall a good read especially if you're one who enjoys science. For me, it took a bit to get into it since I am normally not a non-fiction reader and when I do I don't tend to gravitate towards Applied Sciences. But still a good read although I wouldn't classify it as a 'weekend' one.