This book is aimed squarely at a particular demographic: fans of Agatha Christie who are also interested in forensics. Given that Christie has sold somewhere north of two billion books, that's not as narrow a target as you might think. Needless to say, I'm in it.
A is for Arsenic is more about the science than about the literary criticism. Every chapter picks a separate poison and discusses its chemical properties, how it works, its symptoms, antidotes (if any), how to detect it, real-life cases, and (finally) how Christie used it in fiction. It's an extraordinarily informative book--good enough for aspiring mystery authors to use as a reference. The tone might have benefited by being more sprightly and less stately; Harkup periodically reveals a sharp sardonic wit. The writing is very clear, though, and should be accessible even to non-scientists. A non-mystery-loving reader won't find much in A is for Arsenic, but for the right-thinking remainder of us it's a lot of fun.
WARNING: Katherine Harkup does her best to avoid spoiling the books, but it's an impossible task. In some cases, just knowing that book X features poison Y--or any poison--is a spoiler. Read the books first. If you've already read them, read them again.
An excellent companion book is Deborah Blum's The Poisoner's Handbook.
Agatha Christie published something like eighty books over a 50-plus-year writing career. Naturally, not all of the books are of equal quality. My semi-subjective list of the absolute best would include (in no particular order):
- And Then There Were None
- The Murder of Roger Ackroyd
- The ABC Murders
- Murder on the Orient Express
- Death on the Nile
- Cards on the Table (warning: contains a spoiler for Murder on the Orient Express)
- Evil Under the Sun
- Sleeping Murder
- A Murder is Announced
- Thirteen at Dinner
- Five Little Pigs
- The Patriotic Murders
- The Moving Finger
If she'd written any one of these, it would certainly have been considered a classic, one of the absolute best books of the puzzle-mystery genre. To have written all of them, plus twenty or thirty others that are almost as good . . . well, it's just plain unfair.