books.google.com - Onomatopoeia-words such as "glug glug," "pow," and "splash" in English- are an integral part of Japanese. Japanese people draw on a wealth of onomatopoeiato express subtle feelings, images, sounds, and actions. With this book you too can become pera pera - fluent- in Japanese,...https://books.google.com/books/about/Nihongo_Pera_Pera.html?id=ognRAgAAQBAJ&utm_source=gb-gplus-shareNihongo Pera Pera !