本書由近百個“無字證明”組成。無字證明(Proofs Without Words)也叫作“無需語言的證明”,一般是指僅用圖像而無需語言解釋就能不證自明的數學結論。無字證明往往是指一個特定的圖片,有時也配有少量解釋說明。本書正是因為圖片豐富而趣味十足,所以取名為數學寫真集。本書是數學愛好者的休閑讀物,也是中學生和大學生的課外參考書,還是數學教師的教學素材。This work was originally published in English under the title, Proofs Without Words, III: Further Exercises in Visual Thinking.©2015 held by the American Mathematical Society. All rights reserved. The present translat等