Learning about liquor, where to start?

Wine is my favorite drink, but I’d really like to learn a few things about different spirits. I’m really interested in Scotch (it has terroir and barrel-aging! Those are things I’m familiar with.) But I’d really like to learn a bit about everything. Do you have any suggestions, reading, or general tips to share? Is there a white zinfandel of the liquor world? I want to know.