 Potter 's books have been translated into almost 30 languages , including Greek and Russian . The Tale of Mrs. Tittlemouse was translated into Afrikaans in 1930 as Die Verhaal van Mevrou Piekfyn and into Dutch in 1970 as Het Verhaal die Minetje Miezemuis . Under licence to Fukuinkan @-@ Shoten of Tokyo , in the 1970s The Tale of Mrs. Tittlemouse and 11 other stories were released in Japanese . In 1986 , MacDonald observed that the Potter books had become a traditional part of childhood in both English @-@ speaking lands and those in which the books had been translated . 
