AT&T Brand Guidelines at a Glance 7 Signature Incorrect Use To preserve the integrity of our brand, we must use our signature correctly and consistently in every application. Altering, distorting or redrawing the signature in any way weakens the power of the image and what it represents. Do not place the signature against a photographic background without sufficient contrast. Do not change the letterforms of the logotype to uppercase. Do not change signature colors. Do not place the signature over other graphic elements. Do not rescale signature components. Do not reposition or “flop” signature components. Do not place the signature within text. Do not distort the signature. Do not use multiple globes or use the globe as a graphic element. Do not add text or product names to the signature. Do not remove any element from the signature. Do not place the ampersand in any shape or holding device, or use it as an independent graphic element.