Sanseido, the publisher of the textbook, said Nishikori has encouraged younger people because of his effort in the world. He moved to the U.S when he was 13 and struggled to success. He became the first Japanese to get the U.S. Open final. The four pages of article concludes with Nishikori's message, "make your dreams come true."
About 900,000 junior high school students will use the textbook.