The Art of Thinking Clearly

The Art of Thinking Clearly is a 2013 book by the Swiss writer Rolf Dobelli which describes in short chapters 99 of the most common thinking errors - ranging from cognitive biases to elements like envy and social distortions.

The book was originally written as weekly columns in leading newspapers in Germany, the Netherlands and Switzerland, and later in two German books. The book has been in the top ten of Germany's Der Spiegel Bestseller list for 80 weeks in a row and has been translated in many languages. Besides Germany and Switzerland, book hit the top ten bestseller lists in the U.K, South Korea, India, Ireland and Singapore.