Her writing extends well beyond her blog, too-- I'm pretty sure I own every single one of her books.
Knitting Rules! The Yarn Harlot's Bag of Knitting Tricks. This is the book that taught me how to knit socks, thus I will love it always and forever. She writes as if she's having a conversation with you, it's not a pattern so much as it is a description of how all the sock bits work. It makes you feel as if someone is walking you through the process, rather than just throwing some numbers at you. I think it's a great way to learn. She has some wonderful views on yarn stash, too, that make me feel quite a bit less guilty about the size of mine. :)
If you haven't read anything by the Yarn Harlot, then you
Do you have any knitting heroes? Who should I read right now?