Book font, also known as serif font, is a typeface commonly used in book publishing. It is distinguishable from other fonts by its small lines or strokes attached to the ends of the letters, known as serifs. Book fonts are designed to create a comfortable reading experience, with the serifs helping guide the reader's eye across the page. They are often used in printed materials, such as books, magazines, and newspapers, but can also be found in digital media. Some popular book fonts include Times New Roman, Garamond, and Baskerville.