What is considered not an essential element of a contract?

The signature of the parties is not considered an essential element of a contract because a contract can be valid and enforceable even if it is not signed by the parties involved. The key elements that make a contract valid include the presence of an offer, acceptance, consideration (the value exchanged), and the parties' capacity to contract.

The signature serves as a method of demonstrating acceptance of the terms of the contract, but it is not legally required in every circumstance. Oral agreements can also form contracts if they meet the essential elements, despite lacking signatures. Thus, while obtaining signatures is generally a best practice for clarity and enforcement, it does not constitute an essential component of a valid contract.