Your question is a little confusing. Are these two separate questions?
In general, the || sign represents OR. To explain more clearly, it’s saying that the value is True IF either side of the || is true. So, when True || False, the total value would be true.
The && sign represents AND. In this scenario both sides MUST be true in order for the entire value to be true. Therefore True && False is FALSE because one side is false.
Section 5.3 of the textbook might be of help as well!