When I create a logo or brand, some companies choose to have brand guidelines created to ensure that their brand is kept looking consistent for many years to come. The brand guidelines lay out in word and pictures how to use the different elements of a brand. Included in the document are examples such as: where to place a logo, how to use the brand colors, how to incorporate photography, brand typefaces and how to use them. Brand guidelines allow me as a designer to geek out and show all of the specific details and that go into creating a consistent visual identity.
See the whole Brand Guideline here Pro-Bono-Brand Guidelines-2
Chapter 2 – Visual Identity
Size and Scale of Logo
Program area icons