This is a good idea: a very short high level summary of the main events of the Second World War. While I'm not an expert, I'm familiar with the key events yet still found this interesting and useful.
It's not, however, as well delivered as it could be. Some of the writing is slack and the organisation could be tighter. It reads more like a hobby project than a professional publication. But it's a fair effort and decent value from the Amazon Kindle Store for GBP 0.99.