This image is formed by using the most frequent words used when considering all of my publications. A higher resolution graphic can be viewed by clicking the image below.

In more detail, I made this figure by merging all my publications (without my thesis) into one big (279 page) PDF document, then using tesseract (an OCR program) I extracted all the text. After that, I used Mathematica to create the word cloud. I've posted the code on Github if you're interested in using it yourself.

 

And just for fun, the same data, but in the shape of Pi: