哇，謝謝班長轉貼，還給置頂了。一並回答以上幾位：

我家老大五歲，對＂Follow the Money＂比較感興趣。老大三歲對＂If you made a Million＂裏的胖娃很感興趣。

我覺得這兩本書的趣味性和知識性都很不錯，通過通俗易懂的文字、插畫介紹錢幣上的總統、數量、錢的流通。在amazon上查看了custom review，找到其他書，看介紹不錯。有興趣的可以根據link去查。

Here is one review for "How much is a Million":

I'm currently a college student, majoring in Mathematics.

I clearly remember this book, and the sequel by the same author, as huge parts of my childhood love for the subject. Its clear and innovative style helped spark in me a deep love of mathematics. I still imagine big numbers as fields of stars and lines of kids holding fishbowls.

This is perfect for any child, it gives potentially abstract and boring numbers a proper sense of wonder. I can't reccomend it enough.