X and A signs are types of display signs used in marketing to promote products, services, events, or brands.

An X sign is a free-standing sign shaped like the letter "X" when set up. It typically consists of a tripod stand and a lightweight, flexible sign that is stretched over the stand. X signs are commonly used for indoor marketing campaigns, such as trade shows, exhibitions, and conferences. They are easy to set up and transport, making them a popular choice for businesses that need to quickly and easily set up displays.

An A sign, also known as an A-frame sign or sandwich board sign, is a type of freestanding sign that is shaped like the letter "A".  It consists of two connected panels that are hinged at the top to form an "A" shape. A signs are typically used for outdoor marketing campaigns, such as sidewalk advertising for retail stores, cafes, and restaurants.

Both X and A signs can be effective in marketing because they provide a highly visible and eye-catching display that can attract the attention of potential customers. They are also relatively inexpensive compared to other forms of advertising and can be reused for multiple events or campaigns. Additionally, they can be designed with high-quality graphics and branding to reinforce brand awareness and leave a lasting impression on potential customers.