Methods (Channels) or Types of Communication

Communication may be classified into several categories on the following basis:

1.On the Basis of Organizational Structure or Relationship:

1. Formal Communication
2. Informal Communication or Grapevine.

2.On the Basis of Flow or Direction:

1. Downward Communication
2. Upward Communication
3. Horizontal or Lateral or Sideward Communication
4. Diagonal Communication.

3.On the Basis of Methods or Media used or Expression:

1. Written Communication
2. Oral Communication
3. Gestural or Non-Verbal Communication.