Muslin can be folded and canvas have to be kept rolled. Canvas cannot get any wrinkles or bend in anyway this will ruin the canvas. Most photographers use canvas in their studios and muslin for on location.
Muslin can be stuffed in a bag and youre on your way. The width of the canvas is the size of the tube that you would have to travel with. More.
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.