Your biggest writing challenge?

I have a colossal writing challenge in front of me like none I have seen. (Welcome back to the summer semester.)

In 2014, I asked myself the question: "What's the most commercially valuable piece of writing you could put on one sheet of paper?"

My answer was the executive summary for the largest deals in London.

And so I charged into the world of mega deals, where corporate teams trying to land whale-sized contracts over the course of months would spend millions trying to land deals worth hundreds of millions.

What I unpicked was that despite the many six-figure salaries in the room, the narrative was often missing from their approaches - and they were unconfident in clearly talking to the client.

The value of this challenge was to ensure the teams could see themselves and the gaps in their approach before putting pen to paper.

Once their mindset had sifted through the noise, their only focus was the reader, the customer or the end user: often the CEO, finger-at-the-trigger to spend £400m.

The executive summary should not be a cluster of jargon that runs over pages. It should be confident, sharp and bold.

That little business idea helped me to shape some brilliant projects.

What's the hardest thing you've ever written?