Three networks used in formal communication along with diagrams are as follows:
(i) Single chain In this network, communication flows from every superior to his subordinates in a single chain.
(ii)Wheel network In this network, all subordinates working under a superior communicates through him only. The superior is at the 'hub' of the wheel, communicating with all at the same time.
(iii) Circular network In this network, communication moves in a circle, from one person to another. One employee can communicate with his two adjoining employees.