Briefly, a craft is any form of creativity that lacks originality, or can be replicated from instructions or archetypes. Basically, all of those weaving things you did in gradeschool that your teachers praised you so much for, because you were a "natural artist."
An art stems from the concept of craft, but includes an added element of innovation or originality. Many have said that art is anything with no apparent purpose other than aesthetics- this is not true. Art can take the form of any craft touched with profound innovation, where profundity does not imply aesthetic alone.
It is the craft element of a piece of work that elicits simple emotion such as nostalgia or outrage, as the most basic of human emotion is not difficult to tease out, and such a thing can be done with a method that is duplicable through documentation.
For perspective, many young adults choose to migrate to a major city such as San Francisco or New York to attend an "Art School" such as the Academy of Art. Teaching art is an oxymoron, as the creative initiative would have stemmed from archetypes and proven methods- the stuff of a craft- rather than being of purely original, random inspiration. In this sense, Art schools are technically craft schools, and are useful in their supplement of foundations for art.
Many craftspeople claim to be artists, and often make money selling their acclaimed "art" to connoisseurs, though their success is more a display of insolence rather than talent, and when confronted about the artistic nature of their work they simply claim a single photo of a waiter "too profound to explain," a three-minute sap ballad "expresses their inner anguish," or that a blob of paint and rice randomly thrown on canvas is "Abstract." (Abstract painting and sculpture, much like free-form poetry and experimental music, rarely holds the form of art, as it is simply random. An artistic abstract concept still maintains structure, such as a defined rhythm structure, tonal density or predetermined lack thereof, or color and hue dynamics.)
The differentiation between a serious artist and a posing craftsperson is their level of modesty. When an artist holds a show, it will most likely be the only one they hold that year, and, most importantly, they don't set out to make a living of it. It may well happen if they are randomly successful, but there is no disappointment at never selling a piece because the art itself is a reward to have conceived.
Metalhead from a rural mountain town who's been playing from an early age- 5% probability of artistic talent.
Working-Class journalist with a love of Indian cuisine and horse racing- 8% probability of artistic talent.
Line cook in a shitty restaurant who despises his workplace but loves his job- 60% probability of artistic talent.
There's really no celebrity involved. Greater sacrifice means deeper experience and comprehension.
Also: That produced by an "artist". It comes in many forms:painting, pencil-drawing, sculpture, etc. The medium isn't important as long as the creation is unfathomable to all but the exceedingly rich and outstandingly gay, who only pretend to understand it anyway and write protracted essays on it aimed at the terminally dull. Amongst those 2 classes of people a piece of art will often engender much chin-rubbing in bizarrely-lit art galleries. The practitioners of art are invariably pretentious individuals who consider themselves superior to all other people. In fact some artists take up the occupation in order to further remove themselves from normal, right-thinking people.