A collection of fonts that share the same name, but have different styles is called a family of fonts. There are eight general classifications of fonts. Fonts fit into one of these classifications depending on the way they are drawn. To understand this, you must first learn about the parts of the letter. There are three parts of a letter that help determine which classification the font falls into.
Serifs are decorative lines that are added at the end of the strokes of some letters.
Letters that do not have serifs are called sans serif . The stroke of the letter can be thick or thin. Some fonts have uniform strokes and some have variations in the thickness of the strokes. All of these things - serif, fillets and stroke need to be considered when determining which classification a font fits into. Each classification of font is used for different purposes.