Typography is the style or appearance of text.
It can also refer to the art of working with text—something we see everywhere—in books, ads, websites, products, magazines.
In essence it is the art of arranging letters and text in a way that makes text legible, clear & visually appealing to the reader.
It involves font style, appearance, and structure, which aims to elicit certain emotions and convey specific messages.
In short, typography is what brings the text to life.
Good use of typography makes a visual impact on readers thus inviting them to read a book, helps in comprehending information, makes the reader focus & builds brand recognition in case of websites & products.
For writers it is essential to keep in mind that regardless of how attractive the cover is & how good the story might be, the choice of the right arrangement of fonts, point size, and line length can make or break a book.
The goal is to create a readable, consistent & visually satisfying reading flow that works invisibly, without the awareness of the reader.
The choice of typography also depends on the genre of the book, fiction, non-fiction, educational or commercial writing.
Each have different characteristics, target audiences & require appropriate corresponding fonts.
The different elements of typography are:
Fonts
Typefaces
Contrast
Consistency
White space
Alignment
Colour
Hierarchy
To read more on this subject please visit
https://careerfoundry.com/en/blog/ui-design/beginners-guide-to-typography/