Next to oral communication, written communication is the oldest known form of communication. Any form of communication which is written and documented from the sender to the receiver is known as written communication. Examples of written communication include letters, memos, research papers, reports, etc.
It is a very concrete form of documentary evidence and can also be used for future reference purposes. As the information is written, it can be easily distributed to many people thus making it a bulk communication method. As the information does not change from person to person, the accuracy of the information conveyed is same across the entire audience.
To ensure an effective written communication form, it is a must to follow completeness, clarity and correctness in your writing. As there is no immediate feedback that can be received, it is important that written communication is detailed and accurate to ensure that the write message is communicated.
Also remember to keep the communication simple and without any errors. Written communication also has its limitations like lack of feedback, absence of modulations to convey message effectively, etc. These can be overcome effectively by mixing oral communication with written so as to combine the advantages of both along with eliminating the disadvantages.