I met Christina Wodtke (@cwodtke) at a conference in Prague a few years ago and after that I am following her twitter :)
Last Friday I 've noticed hers tiny book about drawing and the "everyone can draw" call make me to submit it here, because I believe that this is truth :)
She used to work for Yahoo as a Senior Designer and now she writes amazing books and teaches at the university on how to create high performing teams.
There are just 46 books left on stock so far. No kidding! Hurry!
There is also a digital edition for you e-reader :)
Threat Modeling e-book