When you join up to the Institute of Advanced Motorists you will be given a copy of a book.
In the instance of a motorcyclist, you will receive “How to be a Better Rider”, which contains all the principles upon what constitutes advanced riding, in the context of the IAM.
There is also a publication called “Roadcraft” that the Police use as the basis for their advanced
training. This is a much heavier read, also well worth a read, but probably better suited to add to the “toilet library”.
The IAM seem to have made “How to be a Better Rider” available in an on line version, as a free publication.
I would strongly suggest that you have a read.