How to Translate a Book into Japanese: Rights, Publishing Routes and the Process
To translate a book into Japanese, you need a native Japanese translator who writes well in the book’s genre, a second native reader to proofread, and a plan for the title, layout and where the book will be sold. Japanese is quoted by length and a full book is a substantial project, so many authors start with a sample chapter and a translated synopsis to test the market or approach a publisher. If the book isn’t yours, you also need the translation rights first. Here’s how the process works for novels, non-fiction, children’s books and self-published titles.
First: do you have the rights?
If you wrote the book and published it yourself, you usually hold the translation rights. If a publisher released it, check your contract, because translation rights are often held or managed by the publisher or an agent. If it’s someone else’s book, you need permission from the rights holder before publishing a translation.
Self-publishing or a Japanese publisher?
| Route | What you need | Who pays for translation |
|---|---|---|
| Self-publishing (e-book or print on demand) | Full translation, proofreading, cover, metadata in Japanese | Usually you |
| Pitching a Japanese publisher | Synopsis, sample chapter, sales and reviews of the original | Usually the publisher, if they buy the rights |
| Private or family edition | A translation for a small readership, such as a memoir for relatives | You |
What makes book translation different
- Voice. Japanese has many ways to say “I” and to end a sentence, and each one shapes a character. The translator chooses how every character speaks.
- Genre style. A business book, a thriller and a picture book use very different Japanese. Pick a translator who reads and writes in your genre.
- Cultural references. Jokes, idioms and references may need adapting or a short explanation.
- Consistency. Names, places and recurring terms need a glossary so they stay the same across hundreds of pages.
Layout and format
- Vertical or horizontal. Novels in Japanese are traditionally set vertically (縦書き), read right to left. Many business, technical and how-to books are horizontal (横書き).
- Length changes. Japanese text usually takes fewer characters but needs different line lengths, so page counts and layouts change.
- The title often works better adapted than translated. Japanese readers judge a book by its title and the band of text (帯, obi) on the cover.
- Furigana, small reading aids above kanji, may be needed for children’s books.
How the process works
- Sample. A translated chapter so you can judge the voice and get feedback from Japanese readers.
- Glossary and style sheet: names, terms, how each character speaks.
- Translation in stages, with questions sent back to you as they come up.
- Proofreading by a second native speaker. See Japanese proofreading.
- Title, description and keywords for the store page, written for Japanese readers.
Can I use machine translation?
Machine translation can help you understand a Japanese draft, but a book translated mainly by machine usually reads flat and inconsistent, and Japanese readers notice. If you use it, budget for a thorough human rewrite rather than a light check. Our guide to machine translation for Japanese explains where it falls short.
Marketing the Japanese edition
A translated book still needs to be found. Japanese store descriptions, social media posts and a small website in Japanese all help. See marketing to Japanese customers.
How Hanabuddies can help
We translate between English and Japanese with native speakers, and can start with a sample chapter, a synopsis for publishers or the store page for a self-published edition. Every translation is checked by a second native reader. Tell us about the book, its length and how you plan to publish, and we’ll send a quote.