1. Associate's Degree: A two-year degree typically from a community college or vocational school. It provides foundational knowledge in a specific field.
2. Bachelor's Degree: A four-year degree from a college or university. This is often required for entry into many professions and graduate programs.
3. Master's Degree: A postgraduate degree that builds upon a bachelor's degree. It typically involves specialized study and often includes a research component.
4. Doctorate (PhD or other professional doctorate): The highest academic degree. A PhD focuses on original research and contributing new knowledge to a field. Professional doctorates (like MD, JD, EdD) focus on professional practice and advanced skills within a specific profession.
It's important to note that there are variations and exceptions. Some fields might have specific professional degrees that fit between these levels (like a Master of Architecture), and some individuals may pursue further post-doctoral studies after a doctorate.