Text for illustrations in book design [Buke printing]
The textual description of the illustration includes four parts: characters, image sequence, image name, and image caption.
① Characters. Character is the abbreviation for annotation text and identification symbols. If there are too many characters in the image to fit or if they are not aesthetically pleasing, the relevant character numbers can be encoded and then moved in order to the position of the caption.
② Diagram sequence. Also known as drawing number or drawing code. Figure sequence is a type of serial number that encodes illustrations in order. Illustrations in books and periodicals must have a sequence. The figures in the main text are uniformly represented by Arabic numerals and are referred to as Figure 1, Figure 2,... respectively; The English version of the figure sequence is represented by Fg1Fig2. For technology books, if there are many illustrations in each article (chapter), they can be coded independently for each article (chapter). The encoding method is to add the sequence code of a certain article (chapter) before the number in the image sequence, and the article (chapter) number is separated from the image number by a half dot or short line. Do not add punctuation marks at the end of the image sequence. If there is a figure name after the figure sequence, a space can be added between the figure sequence and the figure name to separate them.
③ Image name. The image name is the name of the image. Traditionally, the sequence and title of a diagram are collectively referred to as the diagram title. In general, illustrations should have a title. Place the image name after the image sequence, with a space between the two. The title of the image should be concise and accurately express the theme of the image, generally no more than 15 words. When the title is long, punctuation marks such as commas and commas are allowed, but no punctuation marks are added at the end of the title
④ Image caption. The caption, also known as the caption, is an explanatory note added when the title of the image is still incomplete. Annotations are often used to explain the meanings of characters in graphics. The caption should be placed below the caption and title of the figure. There are no punctuation marks at the end of the caption.
The text on the illustrations of publications used to be sorted or typeset, and then these words were pasted onto the images separately, or handwritten. The image of the assembled characters is then subjected to photographic plate making and combined with the image. However, in modern electronic publishing systems, graphic characters can be synthesized on images using the text functions of image processing systems, or overlaid with images during typesetting using typesetting software. Regardless of the method used, the following points must be achieved
① The font of graphics and characters in a book should be standardized
② Regardless of the scaling ratio, the size of the printed image should be basically the same.
③ The graphic characters should be pasted correctly, and the font size should be moderate (the graphic characters should be one or two characters smaller than the regular characters, and if the main text is five characters, the graphic characters should be five or six characters smaller).
④ The style of using graphic characters in a book should be consistent. The style referred to here refers to whether the graphic characters are arranged horizontally or vertically, whether they are directly explained with text or replaced with symbols and numbers, and then annotated below the title.
The font for graphic characters is mostly in Song typeface, but can also be in imitation Song typeface, regular script, or fine line typeface. Regardless of the font used, the entire book should be unified. The foreign letters and numbers in Chinese characters are generally in regular script, and their size should match the Chinese characters.
Figure text is explanatory or explanatory text for a picture. One method is to directly mark the image with text as a caption, while the other method is to mark it with symbols or numbers and provide detailed annotations below the image, known as caption. When there are not many characters in the picture and there are positions to combine text, try to use captions on the picture as much as possible to make reading more convenient. When there is a lot of text that needs to be marked on the image and there is no place to put the text, image betting can be used. In a book, the same method should be used as much as possible, but individual images can be treated differently.
The sequence, title, and caption must be placed directly below the graphic. If the main text is in five characters, a five character bar should be added between the figure, figure sequence, and figure name; When the title or caption needs to be changed, the lines of the title or caption should be separated by a five point four bar. For the layout of the fence, add at least one No. 5 full body empty space on each of the left and right sides of the diagram; For string text images, add a five point full body space between the image and the text.
The image sequence, title, and caption must be formatted in font size smaller than the main text. Generally, the image sequence and title should be in size five, while the caption should be in size six. If both use the same font size, the image sequence and name should be in bold, and the caption should be in Song typeface for clarity.

Text for illustrations in book design [Buke printing]