czytelno

Czytelno is a concept in Polish information design that describes the overall readability of a written text. Deriving from czytelny (readable) and czytelność (readability), czytelno encompasses how easily a reader can perceive, understand, and retain information from a text, considering typography, language, and context.

Its scope includes typographic legibility (font choice, size, line height, contrast), layout (line length, margins, white space), linguistic clarity (sentence length, vocabulary difficulty, syntax), and contextual factors (reader goals, device, prior knowledge). Visual cues such as headings, bullets, and spacing also contribute to czytelno by guiding the reader.

Measurement of czytelno relies on a mix of methods. Readability formulas adapted for Polish may quantify sentence and word complexity; augmented by user testing with target audiences and expert reviews. In digital products, automated checks for contrast ratios, font sizes, and responsive layouts are common proxies for czytelno.

Applications of the concept appear in educational materials, governmental communication, and user interface copy, where improving czytelno supports comprehension and accessibility. While useful, czytelno is not a strictly standardized metric; it remains a holistic, context-dependent assessment affected by reader background and content purpose.

Related terms include czytelność, legibility, readability, typography, and accessibility.