"If you've got a story which is around a map or a graphic but you don't bother to crop that image properly, you're effectively killing your own story," the BBC's Mark Frankel told Journalism.co.uk earlier this year.
Twitter got a lot more visual when it rolled out in-stream previews for images late last year, meaning photos posted in a tweet were automatically expanded without users having to click on them.
However, getting it right isn't as foolproof as it sounds, as the image below shows.
Twitter image preview fail. (It was a tall "portrait" image): pic.twitter.com/cMhZeKIzHg
— Dan Wood (@danwood) October 8, 2013
So to avoid giving your own hard work the kiss of death, take a look at this infographic from visual.ly.It includes handy hints such as the recommended size and crop ratio for landscape images, and how to upload a portrait image which doesn't accidentally lop off your subject's head.
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