I was in the same situation and I started to use a CodeIgniter. It naturally guided me into oop (and I LOVE it).
Perhaps you should look at 'PHP Objects, Patterns and Practise' by Matt Zandstra, 3rd Edition. I actually dislike the writing style of the book; it introduces difficult concepts in a hard-to-digest manner and then expects you to be forever comfortable with them when discussing the books' later material. Nonetheless, with some work, it will certainly help take you far beyond the ubiquitous example of a Shape base class being extended by 'Triangle' and 'Square' children (etc).
It is aimed at procedural PHP programmers, so it may be very useful for you.
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.