Professor Daniel Mandelker has authored a very helpful handbook, Free Speech Law for On Premise Signs, which is available for free download at the United States Sign Council site at:
http://www.ussc.org/dbFiles/MandelkerFreeSpeechLawforonPremiseSignsAug92012.pdf
The handbook explains the free speech law that determines how sign ordinances for on premise signs should be drafted. It first discusses the general free speech principles that apply, and next the free speech law that applies to different types of signs and the regulations that apply to these signs, such as height and setback requirements and design review.
