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By the Author
![Every Word Is a Bird We Teach to Sing](https://www.hachettebookgroup.com/wp-content/uploads/2018/03/97803163530761.jpg?w=190)
Every Word Is a Bird We Teach to Sing
![Thinking In Numbers](https://www.hachettebookgroup.com/wp-content/uploads/2017/06/9780316187367.jpg?w=187)
Thinking In Numbers