The visual system
A logo system, a colour palette and a type system, each specified so a designer who has never met you can apply it correctly. Colour is specified in HEX, RGB, CMYK and Pantone, and checked against contrast standards at real text sizes.
Imagery direction defines subject, framing, light and the treatments that are off limits, so the brand stays consistent once your team and not ours is producing the day to day content.