This document is a student project about career choices and personality types. The project aims to show how personality determines career fields. It discusses the four main temperament types (sanguine, choleric, melancholic, phlegmatic) and how they relate to different interests and skills. Examples are given of career fields and specific jobs that may suit different temperaments. The document also discusses the differences between introverts and extroverts, and provides examples of careers that could suit both personality types.