There is a lot about medicine and irrationality there, about false diagnosis that can lead to death and about modern superstitions that still pervade the popular medicine (like homeopathy).
The book is full of examples, explanations and recommendations - how to avoid the irrational thinking in our life. The true goal of the book is - of course - the promotion of true and well based rationality!
Every chapter of the books end with a "moral" - a digest of the chapter content in a form of few most important "sententia".
See some of these "morals":
- Never base a judgement or decision on a single case, no matter how striking.
- In forming an impression of a person (or object) try to break your judgement down into his (or its) separate qualities without letting any strikingly good or bad qualities influence your opinion about the remainder. This may seem cold, but it is important in situations, such as interviews or medical diagnoses based on a range of symptoms, where the judgement may seriously affect the person being judged.
- When exposed to connected material, suspend judgement until the end: try to give as much weight to the last item as the first.
- Try to avoid obtaining information that would bias you: for example, in judging whether an article or a book should be published, remain ignorant of the author’s name until you have formed your own opinion of the work.
Reading this book is a must for all decision-makers...
And, last but not least - it is also beautifully written - so you read it as a good novel :-)