PhD

A PhD, or Doctor of Philosophy, is a graduate degree that is considered the highest level of academic achievement in a particular field. It is earned after completing a course of study and producing original research.

The illustrated guide to a Ph.D. https://matt.might.net/articles/phd-school-in-pictures/

Dr Shaq https://youtube.com/shorts/ioKc-BbijQw

Elon Musk How many PhD papers are actually used ? https://youtube.com/shorts/d2E54Wx7vSk