Conclusion The title font is centered, and the second font is bold. The content is Xiao No.4, Song Ti, 1.5 times the line spacing, and the first line is indented by 2 words. The font format of the directory is center, small and thick. The content format of the table of contents is bold, No.4, 1.5 times line spacing. For the introduction, the font format is centered, small and thick. The content format is Song Ti, Xiao Si, 1.5 times line spacing, and the first line is indented by 2 characters.
Extended data
The principle of using fonts in books stipulates that:
(1) The font used for typesetting the text of general books should be no less than No.5; Popular books and children's books for the workers and peasants should be printed in small four-character or larger font as far as possible.
(2) In books, the imitations of the small five-character and the long five-character in the Song Dynasty are only used for quotations, descriptions, catalogues, charts, etc. , but reference books are for reference only, such as dictionaries, manuals, data indexes, bibliographies, charts, etc. , can be printed in the Song Dynasty imitation small five characters or long five characters.
(3) The number six is generally not used in books, but it can be used appropriately in notes, explanations, charts, etc. Books and some reference books.