Transfer paper is a special type of paper used for transferring images or designs onto various surfaces, such as fabric, wood, or ceramics. It typically has a coating that allows ink or toner to adhere to it, making it easy to create custom designs for projects like t-shirts, mugs, or home decor. To use transfer paper, you first print your design onto the paper, then place it on the desired surface and apply heat, often with an iron or heat press. This process allows the design to stick to the surface, making it a popular choice for DIY crafts and personalized gifts.