I'm going to recommend a very good book about Vermouth that will teach you a lot. But it's not the new one to your right.
Adam Ford writes in the introduction to his new book "Vermouth" that on a first date at a Manhattan speakeasy, his date ordered a glass of chilled sweet vermouth.
"Who orders vermouth? I thought, and was immediately drawn in by the mystery ... I had never tasted vermouth, nor was I interested," Ford writes. "I thought I looked cool pouring a dash into a martini glass and then dumping it out."
That drink changed Ford's life completely -- and he didn't even taste it. He ended up marrying the woman, and now he makes vermouth for a living. And you thought you've had powerful cocktails.