Are you sociable and impulsive? You might be sanguine. Or are you quiet and sometimes shy? You might be phlegmatic. Find out who you are in the Who Are You? series. This series takes a closer look at the most popular personality theories from star charts to numerology to psychology assessments. Four Temperaments looks specifically at the theory that there are four fundamental personality types: sanguine, choleric, phlegmatic, and melancholic. This hi-low title uses considerate text written at a higher maturity level with a lower reading level to engage struggling readers. A table of contents, glossary with simplified pronunciations, and index all enhance comprehension. Informative sidebars include fast facts, science connections, and spotlight biographies. Backmatter includes four quizzes inspired by the four temperaments theory.