What is Kerning?
In typography, kerning (less commonly mortising) is the process of adjusting the spacing between characters in a proportional font, usually to achieve a visually pleasing result.
Source - http://en.wikipedia.org/wiki/Kerning
Here is an example of how Kerning helps in your typography and making it easier for readers to read.
Bad Kerning
Good Kerning
Not every font types have the best kerning. Always use manual kernings for it will give you more control. You can access kerning by going into your character panel whether its Photoshop, Corel or any other related softwares.
Here is a website to help you practice : Click Here
Have fun kerning! Cheers!

