Tadoku

Tadoku (extensive reading) is short Japanese you mostly understand, read in volume. NPO Tadoku Supporters publish a free digital library and point to paid print graded-reader packs. The method is simple: finish easy books. Do not collect files.

Who it fits

It fits someone who will finish a booklet this week. The English how-to page, checked 27 Oct 2026, tells you to start with extremely easy, pictured books, skip unknown bits, and drop a book that is not enjoyable. You can start if you know some hiragana. The same page says entire-book audio exists when you do not. That is not a universal kana wall, and it is not a promise that every free title includes audio.

Free library versus print

Start on the free library if you have not finished a Japanese book yet. The free-books page lets you read in the browser, download a PDF, print a booklet, or watch a YouTube version when one is listed. Filter by level, then check each title for an audio or YouTube label. Audio is a per-title feature, so open the book page before choosing a listen-and-read session.

Buy print when you want a physical stack you will actually open. The graded-readers page lists ASK packs (levels 0 to 4, sold as packs), Taishukan packs (levels 0 to 5), and nine NPO Nihongo Tadoku Books sold individually or as a set. Those print series are described with furigana, pictures, and audio as CD or mp3. The NPO order page sells only its nine books. ASK and Taishukan packs are bought elsewhere. ASK’s line also has its own profile at Japanese Graded Readers. Do not buy both as a first step.

If a browser reader fails to open, check that title’s page for a PDF download or try another book. A problem with one reader does not establish that the whole library is unavailable.

Limits

These are not annotated like Satori Reader. Lookup is on you, and the method asks you not to stop for a dictionary. If a daily news article is more realistic, NHK News Web Easy may be the better habit. If you already finish easy books and need a native title, Natively grades books and shows by community comparison. It is not a reader.

How to test it

Use a first session to choose a book you can follow, rather than to prove your level.

1. Open the free library and select Level Start or Level 0. Tadoku’s level guide describes Level Start as suitable for absolute beginners using illustrations and audio; Level 0 is the starter level. Choose by how easily you follow the story, not only by a JLPT label.
2. If you need a concrete starting point, this Level Start story about a dog looking for its ball has furigana and audio. Its official page offers a browser reader, a reading PDF, a print PDF and an MP3. Those options belong to this title; do not assume every free book has them.
3. Look at the pictures, listen if useful, and read without stopping for every unknown word. If you cannot follow the story even with its pictures, choose another easy book. Tadoku’s rule is to leave a book that is too hard or uninteresting.
4. If you finish and enjoy it, choose a second book at the same level. If you want detailed sentence explanations instead, use an annotated reader such as Satori Reader.

The offer path is /go/tadoku.