Actually, you can both link to the framework and include the headers, without needing to download the source.
Turns out that although the framework can be linked in to an xcode project, the headers are missing. I have got around this by downloading the HTML Tidy Source (src and include directory) and added them in to compile as part of my xcode project.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.