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"There is a man who gave his whole life to find the answer to the question 'What is a unit? This is Gottlob Frege, a German mathematician who lived in the nineteenth century. "And what, this mathematician did not know what a unit is?" you may wonder. However, how do you explain what 1 is? Even if there are those who show one apple or one pen and say: "Here is one thing". However, an apple and a pen are not the same thing. Both can be said to be "one", but why is that? Thinking about the future of numbers is like thinking about the future of people. So, if this picture book makes you think about the future of numbers, I'll be happy."
Masao Morita

Published with the support of the LuckyBooks charity project.