I really enjoyed reading your book! It was fun and easy to read (hard to find these two qualities in most math ed books, I have to say), at the same time very informative! I especially enjoyed how it combines a bird's eye view by highlighting historical contributions in a storytelling style. All these qualities makes it a very unique and important contribution to the mathematics education (and history of mathematics) literature.

--Arda Cimen,  Adjunct Professor, Faculty of Education, Simon Fraser University

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