When people ask me what my favourite book is my default answer is The Blue Girl. One of my first experiences with urban fantasy I found The Blue Girl to be the perfect combination of weird and wonderful. I'm sure that in the coming years I will re-read this book to see if it holds up to my previous experience and when that happens I'll be sure to give it a proper review. In the meantime, I highly recommend you check out Charles de Lint. His Newford series is really interesting and worth it for anyone who loves world building and companion series.