This is one of those Wordle graphics which looks at the words in a piece of text - in this case the last three posts - and then makes the most used words the biggest etc.
Obviously 'presentation' is the most popular because this week has been a PowerPoint week, but I'm gratified that 'think', 'health' and 'gardening' are also up there.
Go to the Wordle site and have a go yourself with something you've written.