It will likely not surprise you that I think some of the best magic comes from words. In the second story of Mortis Operandi, words are indeed magic. This anthology is a collection of supernatural crime stories, and there's a murder/theft/mystery afoot that is all about a pen, and the magical words that have been written.
"Krug's Pen" by Erik T. Johnson
A detective used to finding things on the odder side of normal is asked to ensure that a pen he is given is actually Krug's pen - a pen known for writing words that give paper flight. But a whole sub-culture has formed around these words, and tracing the pen back to its owner - who seems to have vanished - is going to be tougher than it seems.
I loved this story, with such a strange city, strange magic, and yet a wonderful sense of verisimilitude.