Top findings
Use simple sentences
Complex sentences take more brain power to process, make readability more difficult for low literacy level users and are harder to translate.
Avoid capitalising words
People are more used to reading lowercase letters so comprehension is slower for capitalised words.
Avoid abbreviations and acronyms
This reduces user confusion. Exceptions: when users know them better in abbreviated form, for example GIF and 5KB.
In paragraphs, put links at the end of sentences
This may reduce distraction and cognitive load. It can work better for users with autism.
Avoid referencing gender or age
It’s generally not necessary and can easily make your content non-inclusive.
Choose respectful vocabulary
Research what language could be emotive for your users by exploring forums, blogs and social media, and carrying out user testing.
Readable content is easier to translate
Using plain, simple language, short sentences, active tense, good grammar and accurate punctuation helps make content easier to translate.
For detailed guidance and usability evidence visit specific sections.
All Readability Guidelines recommendations are based on evidence. In Beta we researched 17 usability questions. For some particular points we are still looking for evidence.