There is no generally agreed definition of what constitutes art

OFFICIAL AND NON OFFICIAL LETTERS
A LETTER IS SAID TO BE INFORMAL WHEN IT IS WRITTEN IN A FRIENDLY MANNER,TO SOMEONE YOUARE FAMILIAR WITH. FORMAL LETTERS ARE WRITTEN FOROFFICIAL OR PROFESSIONAL COMMUNICATION.ON THE OTHER HAND, INFORMAL LETTERS ARE USED FOR CASUAL OR PERSONAL COMMUNICATION.
WHAT IS AN OFFICIAL LETTERS?
An officials lettwr,also known as a “formal letter”,is a document professionally written for another company or business professional.They can be used when applying forjobs,issuing a complaint , expressing interest in ajob position or thanking someone.
OFFICIAL LETTER FORMAT
Contact Information (Include your contact information unless you are writing on letterhead that already includes it.)
Your Name
Your Address
Your City
Your phone number
Your Email Address
Date
OFFICIAL LETTER
A FORMAL LETTER IS ONE WRITTEN IN AN ORDERLY AND CONVENTIONAL LANGUAGE AND FOLLOWS A SPECIFIC STIPULATED FORMAT. THESE LETTERS ARE WRITTEN FOR OFFICAL PURPOSES ONLY , SUCH AS WRITING A LETTER TO THE MANAGER , TO THE PRINCIPAL OF THE COLLEGE OR SCHOOL, TO A TEACHER , ETC. BUT WE DO NOT USE FORMAL LETTRS FOR PERSONAL USE SUCH AS WRITING THEM TO OUR FAMILY, RELATIVES OR FRIENDS.
TYPES OF OFFICIAL LETTER
*Government organization official letter
*Semi government organizations offical letter
*autonomous body`s official letter and
*Private organizations official letters
In conclusion, we can say that offical letter refers to the letter that is written formally for conveying official massages by one office, departament or individual to other offices,departament or individuals.
NON-OFFICIALS LETTERS
An informal letter is a non-official letter which we to our friends, family or relatives. These letters are personal letters that are not used for official purposes. There could be many reasons for which we write these letters to our family and friends.
UNOFFICIAL LETTER
The format of an unoffical letter to a friend should include the following things:
*Adress of the sender
*Date of writing a letter
*Address of receiver
*Salutation/Greeting
*Body of the letter
*Conclusion
*Signature of the sender
A format is shown below to write the letter in an informal manner
UNOFFICIAL LETTERS SAMPLE
A letter to a loved one is usually informal in nature. We write this letter to let our loved one know about something or to invite him or her to any situation. Sometimes we also wrie at apologize if we made a mistake . Sometimes wewrite them just to know their well-being