What is the path to becoming a PCB Design Engineer?

Question

Design

Tell me, please, what useful materials you need to study in order to independently start mastering such a profession as a printed circuit board design engineer (there is a separate name for PCB Design Engineer abroad)?

Answer 1

In fact, this profession is much more difficult than it seems. You should start with physics, chemistry and radio electronics, and then you yourself will begin to understand what knowledge is missing.

Answer 2

The same as the path of mastering a profession, for example, an orthopedist. At the beginning 5 years honey. Institute, then specialization.