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Book Off

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Retailer / private label

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Major Japanese second-hand bookstore chain, also dealing in used games, CDs, DVDs.

Last updated October 18, 2026

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First read
Nov 4, 2026
Latest read
Nov 4, 2026

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Overview

Book Off is a well-known Japanese second-hand goods retailer, starting with used books and expanding to games, music, and video. Its business model features bulk purchasing and rapid turnover, with many stores in Japan and abroad.

Products and positioning

Mid-to-low-end secondhand goods market, emphasizing value for money and convenience.

Product categories. Secondhand books · Secondhand games · Secondhand CDs · Secondhand DVDs · Secondhand toys

Controversies

  • 2026

    BOOKOFF discloses member-system breach

    BOOKOFF announced that a third party had breached its member system, resulting in the leak of 6,427,735 user records involving 6,383,279 people. The potentially exposed information included personal details and hashed password data. The company disclosed the incident as a controversy note concerning the unauthorized access and the resulting data exposure.

    Source

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Recent events

  • Reported

    BOOKOFF discloses member-system breach[1]

    BOOKOFF announced that a third party had breached its member system and that 6,427,735 user records, involving 6,383,279 people, were leaked. The potentially exposed information included personal details and hashed password data.

Read more

Sources1 sources

  1. 1BOOKOFF discloses member-system breachfinance.sina.com.cn

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