A retail business that sells goods by post, using catalogue is a

The type of retail business that sells goods by post using a catalogue is called a "mail order firm." A mail order firm is a company that allows customers to purchase goods from a catalogue without visiting a physical store. Customers can browse through a catalogue or an online store, select the items they want to buy, and place an order. The goods are then delivered to the customer's address by post or courier. The catalogue typically contains pictures and descriptions of the products that the company offers for sale. Customers can choose to pay for the goods using a variety of payment options, such as credit card, debit card, or bank transfer. Mail order firms are popular because they offer convenience to customers who may not have the time or ability to visit a physical store. They also offer a wider range of products than a physical store because they can source products from all over the world. In summary, a mail order firm is a retail business that sells goods by post using a catalogue or online store, allowing customers to purchase products without visiting a physical store.