Zoning is a device of land use planning used by local governments in most developed countries. The word is derived from the practice of designating permitted uses of land based on mapped zones which separate one set of land uses from another. Zoning may be use-based (regulating the uses to which land may be put), or it may regulate building height, lot coverage, and similar characteristics, or some combination of these. Similar urban planning methods have dictated the use of various areas for particular purposes in many cities from ancient times.

Theoretically, the primary purpose of zoning is to segregate uses that are thought to be incompatible. In practice, zoning is used to prevent new development from interfering with existing residents or businesses and to preserve the "character" of a community. Zoning is commonly controlled by local governments such as counties or municipalities, though the nature of the zoning regime may be determined or limited by state or national planning authorities or through enabling legislation. In Australia, land under the control of the Commonwealth (federal) government is not subject to state planning controls. The United States and other federal countries are similar. Zoning and urban planning in France and Germany are regulated by national or federal codes. In the case of Germany this code includes contents of zoning plans as well as the legal procedure.

Walter Edward Block (born 21 August 1941) is an Austrian School of economics economist and anarcho-capitalist.

Block was born in Brooklyn, New York to Abraham Block, a certified public accountant, and Ruth Block, a paralegal, both of whom Block has said were liberals. He earned his undergraduate degree in Philosophy summa cum laude from Brooklyn College, where he was a member of the varsity swimming team. Block earned his Ph.D. degree in economics from Columbia University and wrote his dissertation on rent control.^{[citation needed]} Block, who is of Jewish background, self-identifies as a "devout atheist".

Block's early thinking life was characterized by egalitarian thought. In an interview by the Austrian Economics Newsletter, Block stated, "In the fifties and sixties, I was just another commie living in Brooklyn." Block credits his "conversion" to Libertarianism to personal meetings with Ayn Rand while he was an undergraduate student. Alan Greenspan was in attendance at some of these meetings. As Block describes it, "In 1963, when I was a senior at Brooklyn College, Ayn Rand came there to give a lecture. I attended, along with about 3,000 of my fellow mainly leftish students, in order to boo and hiss her, since she was evil incarnate. Afterward, the president of the group that had invited her to campus announced there was to be a luncheon in her honor, and anyone was welcome to take part, whether or not they agreed with her ideas. Not having had enough booing and hissing at Ayn in her formal lecture, I decided to avail myself of this opportunity to further express my displeasure with her and her views."