noun
well-worn favorite book; beloved book showing signs of use
Literary term for a book that has been handled and loved so much it shows wear; implies deep personal attachment.
祖父の手沢本には、たくさんの書き込みがあった。
My grandfather's well-worn favorite book had many notes written in it.
彼は何度も読み返した手沢本を大切にしている。
He treasures his beloved book, which he has read over and over again.