An important distinction should be made between healthy social influence and psychological manipulation.
A healthy social influence takes place between most people and is part of the give-and-take of constructive relationships.
In psychological manipulation, an individual is used for the personal benefit of another. The manipulator intentionally creates an unbalanced power equilibrium and exploits the victim to serve their purposes.
In Psychological Manipulation: The Best Guide to Learn How to Detect and Survive Manipulation When Others Use It to Control Your Life
you'll find:
And many other interesting topics!