Many successful learners pair this book with an Anki flashcard deck. The book introduces about 1400 items total (grammar, kanji, vocab across the series), so digital SRS helps prevent forgetting earlier weeks.
We highly recommend purchasing a physical copy from retailers like Amazon, CDJapan, or local Japanese bookstores, or buying the official digital version through authorized e-book platforms. Alternative Textbooks to Consider Sou Matome N2 Bunpou Pdf
Digital PDFs can be convenient for quick access, search, and portability. However: Many successful learners pair this book with an