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Graphics are used in textbooks as part of the language of the discipline, as in math or economics,or as study aids．Authors use graphic aids to（26）and expand on concepts taken up in the textbecause graphics are yet another way of portraying relationships and（27）connections．
Graphics are used extensively in natural sciences and social sciences．Social scientists work withstatistics （28）data, and the best way to present these statistics is often in graphic form．Graphicsare included- not merely as a means of making the information easier for the student to grasp, but as anintegral part of the way social scientists think．Many textbooks,（29）those in economics, contain
appendixes that provide specific information on reading and working with graphic material．
Make it a practice to（30）attentively the titles, captions, headings, and other materialconnected with graphics．These elements（31） and usually explain what you are looking at．Whenyou are examining graphics, the（32）questions to ask are (a．)What is this item about? and (b．)What
key idea is the author（33）?
One warning: Unless you integrate your reading of graphics with the text, you may make a wrongassumption．（34） , from a chart indicating that 33 percent of firstborn children in a research sampledid not feel close to their fathers, you might assume that some dreadful influence was at work on thefirstborn children．However, a careful reading of the text（35）that most of the firstborn children inthe sample were from single-parent homes in which the father was absent．
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