Advantages: summarize a large dataset in visual form; easily compare two or three data sets; better clarify trends than do tables; estimate key values at a glance. Disadvantages: require additional written or verbal explanation; can be easily manipulated to give false impressions.

The 14 principles of management propounded by Henri Fayol are:
1.Division of Work
2.Authority and Responsibility
3.Discipline
4.Unity of Command
5.Unity of Direction
6.Subordination of Individual Interest
7.Remuneration
8.The Degree of Centralization
9.Scalar Chain
10.Order
11.Equity
12.Stability of Tenure of Personnel
13.Initiative
14.Esprit de Corps