Introduction

In this book Daniel Kahneman talks about how in our daily life how we make our judgement or decisions.

He investigated most of our decisions are intutive(means based on one's feeling no without proper reasoning or understanding or statistics). He says that this intuitive decision that we make daily in our life regarding career. partner, education, lifestyle, politics, world, environment, market, economy etc; is based on our biases(i.e most likely which we feel based on our comfort and understanding) and this may lead to systematic errors. He explains it with a example. Consider a person who wants to invest in a car company and he invests millions of rupees just because he liked that car not even looking at the mraket value of the company. Kahneman suggests it is best to take decision if you are well experienced in that field. If you are not well experienced and when you are asked a question about a topic your mind will find an answer for an easier question. For example: "WHETHER I SHOULD INVEST IN THIS COMPANY". This is a difficult question so mind finds answer to an easier question "DO I LIKE THIS CAR".Kahneman suggests our mind has 2 systems, System 1 and System 2. System 1 makes fast decision based on knowledge/memory. and System 2 makes slow decisions based on proper inverstigation. This book talks about System 1 and System 2 and their relation with each other.