Why illustration are essential in the layout of a textbook justify in the light of its principles ?

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  • 1 month ago

    Illustrations can help readers to comprehend ideas which are difficult to explain using only written text. Moreover, visual representation has greater recall value and is held longer in memory than written text.

    As a few counter-examples, my honors calculus textbook in college had exactly zero illustrations. I'm pretty sure my abstract algebra textbook didn't have any either. I'd have to conclude that illustrations are indeed a great help in most cases, but not really 'essential'.

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