A visual identity must be clearly documented so that it can be passed on to any member of the company and it is usually done in a form of a Brand Book. A brand book is a complete guide that explains the brand's identity and covers all the brand elements and its applicationss. It usually starts with presenting the brand's mission, core values, and it goes all the way through design aspects like logo, colors, typography, and imagery. Basically, the brand book will let everyone know how your brand presents itself to the world. You can also think of it as a sort of your brand's bible.
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