If you were to write a book on Bitcoin, what content would you put there?

Stories.

I'd want to write a book for the general public, and people love stories more than anything else.

Biography of a Bitcoin millionaire. How he discovered it, what made him believe, how he felt, his poor childhood growing up. Class-hopping. It'd have to be spiced up and a bit dramatized.

Bitcoin Hacker. Bitcoin is a hacker's dream, irreversible bits on weak connected systems. I think I'd forget the straight facts here and just write some fiction based on true events. Write about the geeky childhood, the dark nights, the discovery, the rush... the struggle, the late nights pumping techno. The final victory. The fear. The mix of guilt and excitement. The secret and pride of wealth... that could never be openly shared.

Bonus points if you can take these two and juxapose them. The honest Millionaire who looses everything verses the looser who smarts himself a fortune.

Take a story like that and give it to someone 10 years back and it'd be straight science fiction. But these are the realities of what's actually happening today.

First it depends on who your audience is. A book for people wanting to buy Bitcoin for the first time will be much different than a book for developers who want to build applications that utilize the blockchain.

Tell people that it is not in any way currency. Tell them what it really is.

It's funny how I misinterpreted this title. I read it as: "If you were to write a book [and publish it on the blockchain of] Bitcoin, what content would you put there?"

Cash = unlimited demand and unlimited supply

Bitcoin = unlimited demand and limited supply (maximum 21 million)