The four font manuals correspond to four groups of interactive dynamic works on site, which are the display manuals of four fonts, using 70% + monochrome black to make upper and lower case letters can be presented on the same page, so that each set of fonts can be fully presented while ensuring the minimum cost of printing and paper, each font manual is divided into three major sections: letters, numbers, and symbols, and has the background and description of the creation of on-site interactive works.