A contract is a legally binding agreement between individuals or legal entities. Contract law is a part of civil law.
In English law, four conditions must be met in order for a contract to be considered legally enforceable:
If either party breaches the terms of the contract, a remedy can usually be sought by the party which has been wronged. This can be in the form of damages, or an equitable remedy like specific performance or an injunction.
In Fisher v Bell, it was established that displaying an item for sale in a shop window cannot be considered an offer, but is instead an ‘invitation to treat’.