pie charts article The three pie charts indicates a brief information of annual spending by a UK school in 1981,1991 and 2001. In these three particular years,the total school spending changed in some parts hugely while others only had slight changes.Salaries took up the biggest part in the pie charts of school’s total spending through the past 3 decades.Teachers’ salaries was higher than other workers’ salaries which changed form 40% in 1981 to 50% as a peak in 1991 and had a slight decrease to 45% in 2001.However,other workers’ salaries demonstrated a persistent decline from 28% in 1981 to 15% in 2001 at last. The spending on insurance only possessed the minimum cost of all spending,but it increased constantly from 2% to 8% at the end of 2001. Referring to other parts of the pie charts, the spending on resources such as books reached a point as 20% in 1991 then decreased straightly to only 9%.On the contrary,the spending on furniture and equipment decreased from 15% to only 5% in 1991 at first and had a greatly rise to 23% in 2001 finally.