An underserved perspective
5 stars
If one is going to read exactly one book about Aum Shinrikyō and the sarin attacks, this is my recommendation. It's not the only good book on the topic, but it's notable for focusing on the victims and impact of the cult over its leaders.
Even if one is looking to dive deeper, as I have, it's a good first book. You can't go wrong starting from a place of empathy.