Book Inner Margin Defined: The Gutter

The inner margin of a book or document is the space bordering the edge that is bound or fastened. This space is crucial for ensuring text remains readable and pages can be turned easily without obscuring content near the spine.

Understanding the Term 'Gutter'

In printing and book design, the term specifically used for this inner margin is the gutter. It's the area between the block of text and the binding.

• Gutter: This is the correct term for the inner margin, providing necessary space next to the binding.

Why Other Options Are Incorrect

The other terms refer to different elements:

• Foot note: Supplementary information often found at the bottom of a page.
• Colophon: Typically found at the end of a book, containing publication details like printer, date, and edition information.
• Swash: A typographical term for an extended, decorative stroke on a letterform, often found in calligraphy or display fonts.

Therefore, the inner margin is correctly identified as the gutter.