Snippets: is a picture worth a thousand words?
The short answer is yes, it is. In this paper Yiyi Li and Ying Xie show that "Including an image in a tweet increases the number of retweets by 119% on average for tweets related to air traveling and 213% for tweets about SUVs."
Some pictures seem to be worth more and others less than a thousand words though. "[C]lear-cut theme subject, follow composition rules, and have proper lighting and high resolution" lead to higher engagement. And if you are wondering between pictures of professional photographers, amateurs, and screenshots, go for professionals.
Check out the full list of insights here or below:
My best wishes for a great day ahead!