WFRP inspired or inspiring movies have been listed, as well as WFRP agreable music.
But how about books -how about nonfiction books !?
I 've found this book most informative and inspiring and would advocate it to all GM's trying to evoke a genuinely and historically consistent WFRP world:
The Beggar and the Professor: a Sixteenth-Century Family Saga by Emmanuel Le Roy Ladurie (I've found great details on late medieval/early renaissance social mobility, domestic live, educational system, warfare, citizen martiality, diseases, traveling, street theatre, and soo much more)
Any other non ficiton books worth the read?