Some good books to try and find are The early Raw Energy books by Leslie and Sussannah Kenton. Anything from the 80's and maybe early 90's. After that they went a bit weird and went crazy bodybuilding and overdosing on protein. One of them did anyway, can't remember which one.
Apart from them the internet is a far better reference than I could be. I just follow my nose. ;) Raw is good so the only real trick for me is to make it exciting for my kids and for that I trawl the internet for recipes when I run out of my own ideas.