Readability Is a Responsibility

I have closed articles I genuinely wanted to read. Not because the writing was poor, but because reading it felt like work.

The lines stretched across the entire screen. The text was small and gray. The lines sat so close together that my eyes kept slipping back to the wrong place.

That is not a content problem. It is a typography problem.

Robert Bringhurst addresses this in The Elements of Typographic Style. He describes a line of 45 to 75 characters as a satisfactory length for a single column of text, and he treats 66 characters as close to ideal. Matthew Butterick makes a similar case in Practical Typography. He writes, “The average line length should be 45–90 characters (including spaces).”

The exact number matters less than the principle behind it. Readers need a rhythm they can follow.

When a line is too long, the eye struggles to find the start of the next one. When a line is too short, reading becomes choppy and tiring. Somewhere in between, reading feels natural.

Butterick names point size, line spacing, line length and font as the most important choices for body text. Three of them are about comfort, not style.

First, set a comfortable size. Butterick suggests 15 to 25 pixels for body text on the web. Small text might look refined in a mockup, but it fails the person reading on a phone at the end of a long day.

Second, give lines room to breathe. His guidance for line spacing is 120 to 145 percent of the point size. Tight leading makes paragraphs feel dense. Loose leading breaks the connection between lines.

Third, control the measure. On the web, this is often a single CSS rule. A maximum width keeps paragraphs readable on every screen size. It is one of the smallest decisions in a stylesheet and one of the most important.

Fourth, test with real content. Placeholder text hides problems. Real headlines wrap. Real paragraphs run long. Real readers skim and return.

As someone who works in both design and front end development, I see these choices as a shared responsibility. A designer can define the type scale, but if the code ignores it, the reader still suffers.

If people cannot read it comfortably, it does not matter how good it looks.

Jeffrey Zeldman put it simply when he said, “Content precedes design. Design in the absence of content is not design, it’s decoration.”

Typography is how content reaches people. When we choose size, leading and line length with care, we respect their time and their attention.

Readability is not a finishing touch. It is a responsibility we accept the moment we put words on a screen.