What basic knowledge is needed to enter Google Adwords and Yandex.Direct?

Question

Google Ads

Subject.
What basic knowledge is needed in order to start and start learning how to work in contextual advertising?
Are there any proven practices or books/courses that are a must have to get started?

Answer 1

Quite a common question. Answered in detail already, for example, here or here .
In short, then:
So you can become one of the many beginners with basic knowledge.

Answer 2

Both ad systems have reference materials that they update every time something happens to them. This is the basis you need to know. It is also a must have to create your own account for tests in these systems, try their programs: direct commander and similar from Google.