Academy
Courses on the mechanics rather than the theory: which line on which statement a figure is read from, which inputs are filed and which are estimates you are responsible for, and what each number stops being able to tell you. Free, no account, no email.
Cost of capital
What a discount rate is pricing, where each of its inputs is read from, and which of them are estimates you are responsible for rather than figures anyone filed.
These are teaching materials, not advice. Nothing in them is a view on any security.