Here are a few tips, that may seem obvious, but continue to help drive your message home quickly:
Left-align your email's copy
Reading relies on a multitude of visual cues to make sense of where you're situated on either a screen or a page.
We need an anchor for our eyes as we navigate through content, and a crucial visual cue in email readability is the beginning of a new line in a paragraph.
While the centred text may look good, it detracts from readability and concise comprehension of
your content.
There's also a rule of thumb that any copy that is longer than two lines must be left-aligned.
Make it legible
With the majority of emails being opened on mobile devices, you're going to want your copy legible on a small screen.
A font size of 14px and bigger for mobile is non-negotiable. You'll also want to check that your line spacing and line height are appropriate for both desktop and mobile view email reading.
Make it easy to understand
The popular Flesch Reading Ease test analyses how easily someone can read your text, and bases this on your sentence structure and word length.
The score ranges from 0 to 100, the higher your score, the easier your readability.
Aim for a score of 60-70, considered plain English easily understood by 13- to 15-year-olds, especially for most marketing copy. For effective marketing copy, your aim is in the range of 60 to 70 to be considered English that's easy enough to be understood by 13 to 15-year-olds.
There are a few tools out there, but we use this one by GoodCalculators.
Interest in the content of an email diminishes as the email extends below the fold, so cut the copy and keep the most important points of the message near the top.