バーゲンブック

noun

remaindered book; bargain book

A book sold at a reduced price, often because it is overstocked or slightly damaged. Used in bookstores and online sales.

from English bargain book

• 書しょ店てんのバーゲンブックコーナーで面おも白しろい本ほんを見みつけた。

  I found an interesting book in the bargain book section of the bookstore.

• このバーゲンブックは定てい価かの半はん額がくだった。

  This remaindered book was half the original price.