raising approximately $3.5 billion.

The most expensive item to ever be sold in an auction is Leonardo da Vinci's Salvator Mundi in 2017 ($450.3 million).

In 2018, the yearly revenues of the two biggest auction houses were $5 billion (Christie's) and $4 billion (Sotheby's).

Types

Auctions come in a variety of types and categories, which are sometimes not mutually exclusive. Typification