Demy octavo refers to a book size where each page measures approximately 5.5 inches by 8.5 inches, or 140 mm by 215 mm. This size is slightly smaller than the standard octavo but larger than the crown octavo. It is commonly used for a variety of book types, including novels, non-fiction, and academic works, offering a compact yet readable format.

“demy octavo”的英语定义和含义

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