Vouchers are documents that provide a holder with a specific value or discount, often used in transactions. They can be issued by businesses, governments, or organizations and are typically redeemable for goods, services, or cash. Vouchers are commonly used in promotions, allowing customers to save money or try new products. There are various types of vouchers, including gift vouchers, meal vouchers, and travel vouchers. Each type serves a different purpose, such as gifting, providing meals, or covering travel expenses. Vouchers can enhance customer loyalty and encourage spending by offering incentives for purchases.