Know who you are writing for. Write at a level that will be meaningful for them.
Use words your users use.
Chunk your content into manageable sections.
Front-load the important information. Use the journalism model of the “inverted pyramid.” Start with the content that is most important to your audience.
Use short sentences and paragraphs. Write out what you would like to say, and then go back and remove every single unnecessary words that is not absolutely necessary.
Use bullets and numbered lists. Not just for long lists—one sentence and two bullets is easier to read than three sentences.
Use clear headings and subheadings.
Use images, diagrams, or multimedia. Videos and images should reinforce the text on your page.
Use white space. Visually separate information.