A brand book is a document that regulates and defines the visual communication of your brand. It describes the external representation of the brand, including the logo, corporate colors, fonts, branded products, merchandise, etc.The main goal of creating and using a brand book is to maintain a single recognizable image of your brand, regardless of who is working on your visual communications. Having a brand book helps ensure that your employees - especially those in digital-marketing - know and use the principles of visual design for advertising materials, branded products, social media pages, etc. that are established in the company. In addition, it will significantly save time that you or your team will spend on developing marketing materials.