Making signs and graphics isn’t just about esthetics. They also need to be visible. One of the guidelines we use in the sign business to determine the best viewing distance for a given sign, is the attached letter visibility chart (click on it to expand). Of course other factors also affect how visible a sign (with text or lettering) would be. These includes but are not limited to color, contrast, type of font used etc. If you have any questions about signs, banners, or graphics, please do not hesitate to call us at 408-224-2800 or email us at firstname.lastname@example.org.