Legibility

• serif - font for print projects;
• sans serif (sans = without) - for web-sites design;

Actually, it's partially true, but now we have high-resolution screens, which increase text legibility. Do you use digital books? There are serif font as usual, but it's still easy to read. The other picture you'll see on an old screen - serif font would be blurred.

• https://www.webfx.com/tools/read-able/
• https://www.readability.com/

Legibility

Measure

Line length is the width of a block of typeset text, usually measured in units of length like inches or points or in characters per line (in which case it is a measure). Optimal value: 45 - 75.

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vivamus vel efficitur tortor. Fusce vitae gravida justo, vel viverra erat. Vestibulum mattis est at velit volutpat placerat. Maecenas ullamcorper hendrerit libero, ut aliquet metus tempus nec. Morbi congue pretium orci, at mollis libero aliquam vel. Aliquam erat volutpat. Etiam vulputate laoreet dolor, vitae vestibulum nisi congue at.

64 ch

Unique font as a brand

Relative importance

Title

Subtitle

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vivamus vel efficitur tortor. Fusce vitae gravida justo, vel viverra erat. Vestibulum mattis est at velit volutpat placerat. Maecenas ullamcorper hendrerit libero, ut aliquet metus tempus nec. Morbi congue pretium orci, at mollis libero aliquam vel. Aliquam erat volutpat.

Margins are different, font-height is different. Different logical parts are separated.

Emotions