Acknowledgement Letter: This type of letter is written when you want to acknowledge someone for his help or support when you were introuble. The letter can be used to just say thanks for something you have received from someone, which is of great help to you.
Apology Letter: An apology letter is written for a failure in deliveringthe desired results. If the person has taken up a task and he fails to meet the target then he apologizes and asks for an opportunity to improve in this type of letter.
Appreciation Letter: Anappreciation letter is written to appreciate some one's work in the organization. This type of letter is written by a superior to his junior. An organization can also write an appreciation letter to otherorganization, thanking the client for doing business with them.
Complaint Letter: A complaint letter is written to show one that an error has occurred and that needs to be corrected as soon aspossible. The letter can be used as a document that was used for warning the reader.
Inquiry Letter: The letter of inquiry is written to inquire about a product or service. If you have ordered a productand yet not received it then you can write a letter to inquire when you will be receiving it.
Order Letter: This letter is as the name suggests is used for ordering products. This letter can be used asa legal document to show the transaction between the customer and vendor.
Letter of Recommendation: This type of letter is written to recommend a person for a job position. The letter states thepositive aspects of the applicant's personality and how he/she would be an asset for the organization. Letter of recommendation is even used for promoting a person in the organization.
Business Letter:is a letter written in formal language, usually used when writing from one business organization to another, or for correspondence between such organizations and their customers, clients and other...