Graphology refers to the art of analyzing handwriting patterns, and on their basis, telling about the writers and their personality.
Graphology is widely used in Western Countries, and has gained immense popularity in the past 100 years.
The guiding principle of Graphology is that similar people generally have similar handwriting. And applying Graphology to the writings, one can understand a lot about the writers before interacting further with them, say, for example, offering them a job, finalizing a contract, etc.
In the opinion of Dr. Naavnedhi K Wwadhwa, it is, hence, always beneficial to be aware of Graphology and the way the world chooses to apply it.
One may not have control over the number of people who get access to their Handwriting, Signature & Initials, but one can always have control over oneself and modify these three things so that they are interpreted favourably. And the sooner the modification is done, the better it is.