1. The document discusses several theories of career development, including trait factor theory, psychological theory, decision theory, and developmental/life-span theory.
2. It addresses factors that affect career decision-making such as self-concept, personal preferences, motivation, skills, health, emotions, and self-sabotaging thoughts.
3. The document emphasizes that no single theory can fully explain career development and that individuals must find their own approach, as careers may change throughout life as people and their circumstances change.