Write shorter and more-focused messages and documents. Mobile users often lack the patience or opportunity to read lengthy messages or documents, so keep it shortUse shorter subject lines and headings. As a rule, keep subject lines and headings to around 25 characters. Make every word count. Start with the key words so readers can instantly see what the subject line or heading is about.Use shorter paragraphs. Keep paragraphs as short as possible so readers don’t have to swipe through screen after screen before getting to paragraph breaks.