Whether it’s Laurel and Hardy, Calvin and Hobbes or Woody and Buzz, popular culture loves a good duo. There’s just so much on offer when the right match is struck; not only do we get two great characters but we get the synergy between the two of them. It’s not just double the fun – it’s triple!

The dictionary and thesaurus are like the reference book equivalent of a classic duo. The one is never too far from the other and they really complement each other – but have things always been like this? Was the first dictionary printed alongside the first thesaurus? Can you explain the difference between the two in less than ten seconds?

Take a look at our infographic to understand where each one comes from and what makes them work so well together.