Surprisingly enough, I became interested in clear communication while studying law.
The legal profession isn't exactly known for its use of plain English, but there's long been a movement to get legalese simplified, and it struck me as a decent thing to do.
Until then, I'd been an aspiring writer happily plundering the thesaurus to make my fiction sound more intelligent and worldly. Why settle for beauty when I could us pulchritude, or why say something was glittering when I could say it was coruscating?
As you can imagine, it made for some pretty awful, and very pretentious, prose.
And so, having always been attracted to minimalism, I started using language that I wouldn't feel like a tool saying out loud.
It wasn't a conscious choice to stop using 'big' words, more a move to being able to make myself more easily understood, especially when talking about legal concepts.
Despite this, it wasn't until quite recently that I considered using it as a basis for a series of books, or for anything else, for that matter.
But more about that another time.