A publishing phenomenon in Japan and a heartwarming story that will change the way we all see math, baseball, memory, and each other She is a housekeeper by trade, a single mom by choice, shy, brilliant, and starting a new tour of duty in the home of an aging professor. He is the professor, a mathematical genius, capable of limitless kindness and intuitive affection, but the victim of a mysterious accident that has rendered him unable to remember anything for longer than eighty minutes. Root, the housekeepers ten-year-old son, combines his mothers sympathy with a sensitive curiosity all his own. Over the course of a few months in 1992, these three develop a profoundly affecting friendship, based on a shared love of mathematics and baseball, that will change each of their lives permanently. Chosen as the most popular book in Japan by readers and booksellers alike, The Gift of Numbers is Yoko Ogawas first novel to be published in English, and in the U.S.