Twitter Guide

Do you want to get started using Twitter? Or maybe you want to be even better at using Twitter than you already are? Maybe you can benefit from our Twitter guide, which is full of tips, tricks and guides for both beginners and the more experienced users.

Facts about Twitter

Twitter texts

  • Background info ('bio'): 160 characters
  • Tweet: 280 characters, including any hashtags, mentions and links.
  • Mention: @ followed by user name, e.g. @SSTbrostrom
  • Hashtag: # followed by keywords, often consisting of abbreviations, e.g. #universitiesUK
  • Place hashtags and links at the end of the tweet

Twitter photos

  • Header photo: 1500 x 500 pixels (max. file size of 5 MB)
  • Profile photo: min. 600 pixels wide and preferably 600 x 600 pixels (max. file size 2 MB)
  • Photo(s) in tweet: 1024 x 512 pixels, but any photo between a 2:1 and 1:1 aspect ratio works. Max. four photos per tweet
  • Formats JPG, PNG or GIF

Thank you to Kristian Strøbech and Techhytten

This material about Twitter is based on Kristian Strøbech’s Twitter course and the associated course notes.

What do you get out of being on Twitter?


"Twitter helps me keep up-to-date with research, new methods and broader issues in science. I've also met people at large conferences from live-tweeting their work, so in that way it also strengthens my network."

Christine Parsons, Department of Clinical Medicine, @ce_parsons

"Fun and games, but most importantly it's an occasion to talk about and discuss my work and research. I've got a network on Twitter, which I don't think I would have been able to get anywhere else. Interesting people and opinions."

Asser Thomsen, Department of Forensic Medicine, @AsserThomsen

What makes Twitter special?


  • On Twitter, it is easy to interact with journalists, politicians, your peers and others.
  • You can use Twitter to network and share knowledge with your peers all over the world, and also to make yourself available as an expert in your field.
  • On Twitter you can avoid algorithm-driven filters. This means that you can choose to see everything from all the profiles you follow, and not just the most popular content.
  • You can choose to receive a notification from Twitter when there is new content about or from the profiles you wish to follow in particular.
  • You can actually follow a large number of profiles on Twitter without losing track – for example by making lists of preferred interests and topics.