Controlling kerning
Kerning is the adjustment of space between character pairs. Because of their shapes, certain character pairs look better when kerned. You can use automatic kerning, and you can also use manual kerning controls to specify additional kerning between characters.
Kerning values are expressed as 1/200 of an em space. A positive kerning value increases the amount of space between characters; a negative value decreases it.
Parent topic: Text and typography