One of the most clearly written and thought-provoking non-fiction books I've read in a long time. Skloot raises some really important issues about heavy topics such as bioethics and racism, but seamlessly laces them into a completely compelling narrative. This book has made me more open to "science writers"--a genre to which I've not devoted any attention in the past.
Enjoyed this much more than the fourth book in the series, but can't help feeling that both this book and the last one could have been edited differently. Regardless of any problems with the pacing of the story, I'm hopelessly hooked on these characters and will follow Martin whereever he goes with them.