A quotation is a document provided by a vendor or service provider to a customer that describes goods or services being offered and their costs. It includes the item descriptions, quantities, unit prices, and total prices. A quotation number, date, payment terms, and validity period are usually included. Financial quotations refer to market data like stock prices, while sales quotations are offers for goods and services. The key components of a quotation are a header with business details, a body listing items and pricing, and a footer with totals, terms, and signatures.