Writing an unsolicited circular letter is an excellent approach to reach out to a big number of people at once. It is most commonly used to provide information about goods or services that are being advertised. However, it may also be used for non-business purposes, such as disseminating information about a community gathering or a life transition. People often send these letters to colleagues, friends, and relatives who they think might be interested in what they have to say. The sender does not need to show that he or she is responsible for sending the letter. It can be sent directly from the address listed on this website or even from another location without a postal code if there is no physical address listed. The recipient cannot require payment for receiving the letter. Instead, he or she will be given the opportunity to read the message inside or not, as he or she sees fit. These letters are different from direct mail which is mailed to a specific address. Direct mail is usually offered by companies seeking new customers, while circular letters are used by businesses or individuals looking to spread the word about themselves or their products. Although direct mail and circulars both use mass mailing techniques, they serve different needs and have different effects on their recipients. Direct mail is used to get attention and generate interest, while circulars are useful for distributing information. Some people may find the idea of receiving a large number of emails or letters objectionable.