Traditional Culture Encyclopedia - Hotel accommodation - What is the meaning of "shelving cards" in enterprise announcements?

What is the meaning of "shelving cards" in enterprise announcements?

Rack? Card, a commercial advertising card.

You should see it on weekdays. In magazine rack, convenience stores, hotels, restaurants, rest areas and other commercial places, there are always some brochures of tourist hotels and other service organizations. ?

What is this booklet? Rack? Card.