E-signatures, or electronic signatures, are digital representations of a person's intent to agree to the terms of a document. They can take various forms, such as a typed name, a scanned handwritten signature, or a unique digital code. E-signatures are widely used in business transactions, legal agreements, and other documents, providing a convenient and efficient way to sign without the need for paper. The use of e-signatures is governed by laws like the Electronic Signatures in Global and National Commerce Act (ESIGN) in the United States and the eIDAS Regulation in the European Union. These laws ensure that e-signatures hold the same legal weight as traditional handwritten signatures, making them a secure and reliable option for signing documents electronically.