You probably recognize numerous brands and companies just by their logos. This is, of course, owed to the consistent look of the logos in typography, image, color, size, etc.
Professional communication is consistent. Just like your logo always looks the same, the tone of your texts, your imagery, the email signature of your employees, your font—in short, everything that’s part of your communication—should be consistent. All these typical elements together form the unique, distinctive corporate identity of your company, contributing to its recognition and customer loyalty.