Nomadic people commonly known as itinerant
An itinerant is a person who travels from place to place with no fixed home. The term comes from the late 16th century: from late Latin itinerant , from the verb itinerari, from Latin iter, itiner ....

s in modern-day contexts, are communities of people who move from one place to another, rather than settling
A settler is a person who has migrated to an area and established permanent residence there, often to colonize the area. Settlers are generally people who take up residence on land and cultivate it, as opposed to nomads...

 permanently in one location. There are an estimated 30-40 million nomads in the world. Many cultures have traditionally been nomadic, but traditional nomadic behavior is increasingly rare in industrialized countries. Nomadic cultures are discussed in three categories according to economic specialization: hunter-gatherer
A hunter-gatherer or forage society is one in which most or all food is obtained from wild plants and animals, in contrast to agricultural societies which rely mainly on domesticated species. Hunting and gathering was the ancestral subsistence mode of Homo, and all modern humans were...

s, pastoral nomads
Pastoralism or pastoral farming is the branch of agriculture concerned with the raising of livestock. It is animal husbandry: the care, tending and use of animals such as camels, goats, cattle, yaks, llamas, and sheep. It may have a mobile aspect, moving the herds in search of fresh pasture and...

, and "peripatetic nomads".

Nomadic hunting and gathering, following seasonally available wild plants and game, is by far the oldest human subsistence method.

Pastoralists raise herds, driving them or moving with them, in patterns that normally avoid depleting pastures beyond their ability to recover.

Peripatetic nomads, who offer the skills of a craft
A craft is a branch of a profession that requires some particular kind of skilled work. In historical sense, particularly as pertinent to the Medieval history and earlier, the term is usually applied towards people occupied in small-scale production of goods.-Development from the past until...

 or trade
Trade is the transfer of ownership of goods and services from one person or entity to another. Trade is sometimes loosely called commerce or financial transaction or barter. A network that allows trade is called a market. The original form of trade was barter, the direct exchange of goods and...

 to those with whom they travel, are most common in industrialized nations.

Many groups of 'nomadic' hunter-gatherers (also known as foragers) moved from campsite to campsite, following game
Game (food)
Game is any animal hunted for food or not normally domesticated. Game animals are also hunted for sport.The type and range of animals hunted for food varies in different parts of the world. This will be influenced by climate, animal diversity, local taste and locally accepted view about what can or...

 and wild fruit
In broad terms, a fruit is a structure of a plant that contains its seeds.The term has different meanings dependent on context. In non-technical usage, such as food preparation, fruit normally means the fleshy seed-associated structures of certain plants that are sweet and edible in the raw state,...

s and vegetable
The noun vegetable usually means an edible plant or part of a plant other than a sweet fruit or seed. This typically means the leaf, stem, or root of a plant....