Illustration is always used as an example to make the written text or the utterance more clear in general. In Winarski's opinion (1997), one picture equals thousands of words. That is to say, illustrations are capable to express the meaning of unfamiliar language or a great deal of information in the reading material by vivid pictures, tables,…

This paper reports the findings of a study of undergraduate student use of, and attitudes toward, textbooks and other assigned reading. More than 1200 students of various subjects at three Swedish universities were surveyed. Most students said reading played an important role in learning generally and attributed positive characteristics to their…