Redistribution of the world’s wealth after the Renaissance created an explosive demand for art by a newly educated and prosperous mercantile middle class. Guilds of Master artists and students became virtual factories for art that was produced to fill this demand. The sale of State and Ecclesiastical art collections created new secondary markets in the form of dealers, galleries and auction houses. For the first time in history, art became a commercial commodity.
One of the best things about Goodreads is keeping a TBR list...that list that gets longer every month and nags at you when you start reading the new hot book instead. It's that nagging (just like a mother's "sit up straight!") that makes you really take a second look at the books you've been meaning to read forever and realize from reviews that you really should.
An art forger must be at least somewhat proficient in the type of art he is trying to imitate. Many forgers were once fledgling artists who tried, unsuccessfully, to break into the market, eventually resorting to forgery. Sometimes, an original item is borrowed or stolen from the owner in order to create a copy. Forgers will then return the copy to the owner, keeping the original for himself. In 1799, a self-portrait by Albrecht Dürer which had hung in the Nuremberg Town Hall since the 16th century, was loaned to Abraham Wolfgang Küfner [de]. The painter made a copy of the original and returned the copy in place of the original. The forgery was discovered in 1805, when the original came up for auction and was purchased for the royal collection.
The copying of famous works of art dates to the origins of the history of art collecting and therefore to the beginning of the history of art. In the ancient world, replicas of famous works were made in order to satisfy demand by collectors for such works. The bronze Spear Bearer (c. 450–440 bce) by Greek sculptor Polyclitus, for example, achieved great renown for its perfect proportions and beauty. As a result, it was often copied in marble for Roman collectors in subsequent centuries. The copies, which are all that survived into the 21st century, made no pretense of being the original or having been made by Polyclitus.