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20 Making good use of graphics > Types of bid graphics - Pg. 181

181 Making good use of graphics C 20 ertain kinds of information are communicated more directly and power- fully by graphics than in words. This information principally concerns relationships ­ for example, the way a series of actions relate to form a process as in a network, and the way two or more variables relate as in graphs. Network diagrams communicate the logical relationships between project activities; bar charts of team inputs portray the relationship between the use of resources (people) and the work calendar (time). These relationships could be expressed in words, but only at much greater length and with less likelihood of the message being absorbed and retained.