From the back cover: Distilled in these pages are the insights gleaned during a lifetime of sensitive and loving observation of people and how their behavior reflects their psychological type as measured by the Myers-Briggs Type Indicator. Myers believes passionately that each of the 16 types has its own strengths and that understanding and using these can lead to fulfillment.

The Myers-Briggs Type Indicator or MBTI is one of the most popular methods for describing personality. The model divides people into personality preferences on four measures: introversion-extraversion, intuitive-sensing, thinking-feeling, and judging-perceiving. A combination of these measures gives a possible 16 different personality type preferences. One of the great things about this book is the polls they did matching occupations to personality types. Unsurprisingly there is a connection between what type people are and what jobs they tend to want to do. It's not a one-to-one correlation (thank goodness) but it is an interesting pattern to look at.